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Stained Glass at Chihuly Garden and Glass. Colorful stained glass at Chihuly Garden and Glass in Seattle, Washington Stock ImageStained Glass at Chihuly Garden and Glass. Colorful stained glass at Chihuly Garden and Glass in Seattle, WashingtonCasa Batllo in Barcelona. Antonio Gaudi's Casa Batllo (Casa Batlló) in Barcelona, Spain Royalty Free Stock PhotosCasa Batllo in Barcelona. Antonio Gaudi's Casa Batllo (Casa Batlló) in Barcelona, SpainLa Fortuna, Costa Rica. Downtown La Fortuna, Costa Rica, with the Arenal Volcano shrouded in clouds in the background Royalty Free Stock ImageLa Fortuna, Costa Rica. Downtown La Fortuna, Costa Rica, with the Arenal Volcano shrouded in clouds in the backgroundPaw Paw Tunnel. Northern entrance of the Paw Paw Tunnel on the Chesapeake and Ohio Canal Royalty Free Stock PhotoPaw Paw Tunnel. Northern entrance of the Paw Paw Tunnel on the Chesapeake and Ohio CanalStained Glass at Chihuly Garden and Glass. Colorful stained glass at Chihuly Garden and Glass in Seattle, Washington Stock PhotosStained Glass at Chihuly Garden and Glass. Colorful stained glass at Chihuly Garden and Glass in Seattle, WashingtonNagoya Castle. In cherry blossom, in Nagoya, Japan Royalty Free Stock PhotoNagoya Castle. In cherry blossom, in Nagoya, JapanRed Fox. In a spring meadow Stock PhotosRed Fox. In a spring meadowPerce Rock. In the  Gulf of Saint Lawrence Stock PhotosPerce Rock. In the Gulf of Saint LawrenceLotus Flower. A lotus flower bud in bloom, taken at Kenilworth Park & Aquatic Gardens in Washington D.C Royalty Free Stock PhotoLotus Flower. A lotus flower bud in bloom, taken at Kenilworth Park & Aquatic Gardens in Washington D.CPike Place Market Pig. Neo pig sign in Pike Place Market in Seattle, Washington Royalty Free Stock PhotosPike Place Market Pig. Neo pig sign in Pike Place Market in Seattle, WashingtonCooper's Hawk. Adult Cooper's Hawk perched on a tree branch Stock PhotographyCooper's Hawk. Adult Cooper's Hawk perched on a tree branchHermit Thrush. In winter, with snow in the background Royalty Free Stock ImageHermit Thrush. In winter, with snow in the backgroundMauna Kea at Sunset. Mauna Kea and observatory at Sunset on Big Island, Hawaii Stock ImageMauna Kea at Sunset. Mauna Kea and observatory at Sunset on Big Island, HawaiiGolden Gate Bridge. At twilight, from Vista Point in Marin County Stock PhotoGolden Gate Bridge. At twilight, from Vista Point in Marin CountyDickerson Falls. In Fundy National Park, New Brunswick, Canada Stock PhotographyDickerson Falls. In Fundy National Park, New Brunswick, CanadaLime Kiln Point Lighthouse. On San Juan Island, Washington State facing Strait of Juan de Fuca Stock ImageLime Kiln Point Lighthouse. On San Juan Island, Washington State facing Strait of Juan de FucaAmerican Alligator. Sunbathing in Brazos Bend State Park, Texas Stock ImageAmerican Alligator. Sunbathing in Brazos Bend State Park, TexasWhite-crowned Sparrow. Taken at Redwood National Park, California Stock PhotosWhite-crowned Sparrow. Taken at Redwood National Park, CaliforniaNorthern Gannet in flight. A flying Northern Gannet on Bonaventure Island in the  Gulf of St. Lawrence, Canada Royalty Free Stock PhotographyNorthern Gannet in flight. A flying Northern Gannet on Bonaventure Island in the Gulf of St. Lawrence, CanadaWashington Mormon Temple at night. The Mormon Temple (The Church of Jesus Christ of Latter-day Saints) in Washington D.C. (actually Kensington, Maryland) at Stock ImagesWashington Mormon Temple at night. The Mormon Temple (The Church of Jesus Christ of Latter-day Saints) in Washington D.C. (actually Kensington, Maryland) atPaw Paw Tunnel. Light at the northern end of Paw Paw Tunnel on the Chesapeake and Ohio Canal Royalty Free Stock ImagesPaw Paw Tunnel. Light at the northern end of Paw Paw Tunnel on the Chesapeake and Ohio CanalPaw Paw Tunnel. Light at the southern end of Paw Paw Tunnel on the Chesapeake and Ohio Canal Stock ImagePaw Paw Tunnel. Light at the southern end of Paw Paw Tunnel on the Chesapeake and Ohio CanalPaw Paw Tunnel. Bird's-eye-view of the Chesapeake and Ohio Canal from the Paw Paw Tunnel Stock PhotosPaw Paw Tunnel. Bird's-eye-view of the Chesapeake and Ohio Canal from the Paw Paw TunnelGrand Canyon. National Park, Arizona Royalty Free Stock ImagesGrand Canyon. National Park, ArizonaBryce Canyon. Hoodoos rock formation in Bryce Canyon National Park Stock PhotographyBryce Canyon. Hoodoos rock formation in Bryce Canyon National ParkGray Squirrel. A Gray Squirrel eating nuts on a rock Royalty Free Stock ImagesGray Squirrel. A Gray Squirrel eating nuts on a rockLesser Scaup. (a sea duck) swimming in the Chesapeake Bay Royalty Free Stock ImagesLesser Scaup. (a sea duck) swimming in the Chesapeake BayCanyonlands National Park. With the snow-capped La Sal Mountains in the distance, Utah Stock PhotographyCanyonlands National Park. With the snow-capped La Sal Mountains in the distance, UtahSanderling reflections. A Sanderling (a shorebird) on the beach, reflected in the water, taken in Freeport, Texas Stock PhotosSanderling reflections. A Sanderling (a shorebird) on the beach, reflected in the water, taken in Freeport, TexasLotus Flower Bud. A lotus flower bud about to bloom, taken at Kenilworth Park & Aquatic Gardens in Washington D.C Royalty Free Stock ImagesLotus Flower Bud. A lotus flower bud about to bloom, taken at Kenilworth Park & Aquatic Gardens in Washington D.CThe Rock of Gibraltar. In the fog, overlooking the Spanish port of Algeciras Stock PhotosThe Rock of Gibraltar. In the fog, overlooking the Spanish port of AlgecirasHarbor Seal. Resting on a rock in Monterey Bay, California Royalty Free Stock ImageHarbor Seal. Resting on a rock in Monterey Bay, CaliforniaBuddhist statue in a temple in China. Buddhist statue (of a Buddha) in Famen Temple near Xi'an, China Stock PhotographyBuddhist statue in a temple in China. Buddhist statue (of a Buddha) in Famen Temple near Xi'an, ChinaMule Deer Portrait. Mule Deer looking back, taken at Point Reyes National Seashore, California Stock PhotographyMule Deer Portrait. Mule Deer looking back, taken at Point Reyes National Seashore, CaliforniaYellowstone River. In the Roosevelt District of Yellowstone National Park Royalty Free Stock ImagesYellowstone River. In the Roosevelt District of Yellowstone National ParkCassin's Finch. Taken at Crater Lake National Park Royalty Free Stock ImagesCassin's Finch. Taken at Crater Lake National ParkElk in Yellowstone National Park. Elk with velvety antlers resting in a meadow in Yellowstone National Park Stock PhotosElk in Yellowstone National Park. Elk with velvety antlers resting in a meadow in Yellowstone National ParkTerracotta Warrior in Xi'an, China. Statue of a Terracotta Warrior in the Terracotta Army in Xi'an, China Stock PhotographyTerracotta Warrior in Xi'an, China. Statue of a Terracotta Warrior in the Terracotta Army in Xi'an, ChinaGrand Teton Panorama. A Panoramic of the Grand Teton Range near Jackson Hole, Wyoming Stock PhotoGrand Teton Panorama. A Panoramic of the Grand Teton Range near Jackson Hole, WyomingMezquita in Cordoba. Mezquita or the Great Mosque of Córdoba, Cordoba, Spain Stock PhotoMezquita in Cordoba. Mezquita or the Great Mosque of Córdoba, Cordoba, SpainBlack-bellied Whistling Duck. From the southern bayou in Brazos Bend State Park in Houston, Texas Royalty Free Stock PhotographyBlack-bellied Whistling Duck. From the southern bayou in Brazos Bend State Park in Houston, TexasAkaka Falls, Big Island, Hawaii. Akaka Falls on the Big Island of Hawaii Royalty Free Stock PhotoAkaka Falls, Big Island, Hawaii. Akaka Falls on the Big Island of HawaiiGay Head Lighthouse, Martha's Vineyard. Gay Head Lighthouse at Aquinnah, Martha's Vineyard Royalty Free Stock PhotographyGay Head Lighthouse, Martha's Vineyard. Gay Head Lighthouse at Aquinnah, Martha's VineyardTerracotta Warrior in Xi'an, China. Statue of a Terracotta Warrior in the Terracotta Army in Xi'an, China Royalty Free Stock ImageTerracotta Warrior in Xi'an, China. Statue of a Terracotta Warrior in the Terracotta Army in Xi'an, ChinaRed-shouldered Hawk. Perched on a tree branch in Virginia Stock PhotoRed-shouldered Hawk. Perched on a tree branch in VirginiaPrecarious rock in Shenandoah National Park. On the way to Old Rag Mountain Royalty Free Stock PhotosPrecarious rock in Shenandoah National Park. On the way to Old Rag MountainLaughing Buddha of Lingyin Temple. In Hangzhou, China Royalty Free Stock ImagesLaughing Buddha of Lingyin Temple. In Hangzhou, ChinaFernando (Ferdinand) and Isabel summoning Christopher Columbus. Statues of Fernando (Ferdinand) and Isabel, King and Queen of Spain, summoning Christopher Stock ImagesFernando (Ferdinand) and Isabel summoning Christopher Columbus. Statues of Fernando (Ferdinand) and Isabel, King and Queen of Spain, summoning ChristopherAcadia National Park. Atlantic Coast at Acadia National Park (near Schooner Beach Stock PhotoAcadia National Park. Atlantic Coast at Acadia National Park (near Schooner BeachEastern Bluebird Chick. Perched on a fence Stock ImagesEastern Bluebird Chick. Perched on a fenceSavannah Sparrow in the snow. Close-up of a Savannah Sparrow in the snow, taken n Manassas National Battlefield Park, Virginia Royalty Free Stock ImageSavannah Sparrow in the snow. Close-up of a Savannah Sparrow in the snow, taken n Manassas National Battlefield Park, VirginiaHerring Gull at sunset. Close-up of Herring Gull at sunset, taken at Ocean City, Maryland Stock ImageHerring Gull at sunset. Close-up of Herring Gull at sunset, taken at Ocean City, MarylandRed-shouldered Hawk. Perched on a tree branch in Virginia Stock PhotographyRed-shouldered Hawk. Perched on a tree branch in VirginiaOld Faithful Silhouette. Old Faithful Geyser eruption at dusk in Yellowstone National Park Royalty Free Stock PhotosOld Faithful Silhouette. Old Faithful Geyser eruption at dusk in Yellowstone National ParkTaj Mahal. At Agra, India Royalty Free Stock PhotoTaj Mahal. At Agra, IndiaRuins in the Old Summer Palace. Ruins of the Old Summer Palace (Yuan Ming Yuan) in Beijing, China Royalty Free Stock ImagesRuins in the Old Summer Palace. Ruins of the Old Summer Palace (Yuan Ming Yuan) in Beijing, ChinaSea Lions fighting. Sea Lions at Pier 39 of San Francisco's Fisherman's Wharf Stock PhotosSea Lions fighting. Sea Lions at Pier 39 of San Francisco's Fisherman's WharfCarolina Wren. Singing, taken at a county park in Virginia Royalty Free Stock ImagesCarolina Wren. Singing, taken at a county park in VirginiaGolden Gate Bridge at sunset. Taken from Marin Headlands Stock PhotographyGolden Gate Bridge at sunset. Taken from Marin HeadlandsIndependence Day Fireworks in Washington D.C. With the U.S. Capitol building, Washington Monument and Lincoln Memorial in the background Royalty Free Stock ImageIndependence Day Fireworks in Washington D.C. With the U.S. Capitol building, Washington Monument and Lincoln Memorial in the backgroundField of flags at Boston Common. Field of national flags at Boston Common on Memorial Day Royalty Free Stock PhotosField of flags at Boston Common. Field of national flags at Boston Common on Memorial DayGinkaku-ji, Temple of the Silver Pavilion. Ginkaku-ji, or Temple of the Silver Pavilion, also known as Jisho-ji, in Kyoto, Japan Royalty Free Stock ImageGinkaku-ji, Temple of the Silver Pavilion. Ginkaku-ji, or Temple of the Silver Pavilion, also known as Jisho-ji, in Kyoto, JapanAcadia National Park (Thunder Hole). Atlantic Coast at Acadia National Park (at Thunder Hole Royalty Free Stock PhotosAcadia National Park (Thunder Hole). Atlantic Coast at Acadia National Park (at Thunder HoleWhite-breasted Nuthatch. A White-breasted Nuthatch, moving upside-down on a tree looking for food Royalty Free Stock ImageWhite-breasted Nuthatch. A White-breasted Nuthatch, moving upside-down on a tree looking for foodMorning Glory Pool in Yellowstone. Morning Glory Pool (a hot spring) in Yellowstone National Park Stock PhotoMorning Glory Pool in Yellowstone. Morning Glory Pool (a hot spring) in Yellowstone National ParkAmerican Buffalo (Bison) Portrait. American Buffalo (Bison) in Yellowstone National Park Royalty Free Stock ImagesAmerican Buffalo (Bison) Portrait. American Buffalo (Bison) in Yellowstone National ParkMorning Glory Pool in Yellowstone. Morning Glory Pool (a hot spring) in Yellowstone National Park Stock ImagesMorning Glory Pool in Yellowstone. Morning Glory Pool (a hot spring) in Yellowstone National ParkBathhouse in the Alcazar of Seville, Spain. Bathhouse in the Alcazar (palace) of Seville, Spain Royalty Free Stock PhotographyBathhouse in the Alcazar of Seville, Spain. Bathhouse in the Alcazar (palace) of Seville, SpainCarlos V Palace in Granada, Spain. Carlos V Palace in the Alhambra in Granada, Spain Royalty Free Stock PhotographyCarlos V Palace in Granada, Spain. Carlos V Palace in the Alhambra in Granada, SpainSpace shuttle Discovery's last flight. The last flight of Space Shuttle Discovery on a Boeing 747 jet, moments before landing at Dulles Airport, with the NASA T Stock PhotoSpace shuttle Discovery's last flight. The last flight of Space Shuttle Discovery on a Boeing 747 jet, moments before landing at Dulles Airport, with the NASA TAcadia National Park. Atlantic Coast at Acadia National Park (near Schooner Beach Stock PhotosAcadia National Park. Atlantic Coast at Acadia National Park (near Schooner BeachNorthern Gannets Rookery on Bonaventure Island. Northern Gannet rookery on Bonaventure Island in the  Gulf of St. Lawrence, Canada Stock PhotosNorthern Gannets Rookery on Bonaventure Island. Northern Gannet rookery on Bonaventure Island in the Gulf of St. Lawrence, CanadaSeattle Public Library. The Red Room in Seattle Public Library Stock PhotographySeattle Public Library. The Red Room in Seattle Public LibraryCherry Blossom Festival in Washington D.C. Cherry Blossom in Washington D.C., from the Tidal Basin, with Washington Monument in the background Royalty Free Stock PhotoCherry Blossom Festival in Washington D.C. Cherry Blossom in Washington D.C., from the Tidal Basin, with Washington Monument in the backgroundCape Spartel Lighthouse, Tangier, Morocco. Cape Spartel Lighthouse in Tangier, Morocco overlooking the Atlantic Ocean Royalty Free Stock PhotosCape Spartel Lighthouse, Tangier, Morocco. Cape Spartel Lighthouse in Tangier, Morocco overlooking the Atlantic OceanSplendid interior decoration of the Mezquita in Cordoba, Spain. Splendid interior decoratin of the Mihrab (praying chamber) in the Mezquita (Mosque-converted Stock ImagesSplendid interior decoration of the Mezquita in Cordoba, Spain. Splendid interior decoratin of the Mihrab (praying chamber) in the Mezquita (Mosque-convertedLa Fortuna, Costa Rica. Downtown La Fortuna, Costa Rica, with the Arenal Volcano shrouded in clouds in the background Stock PhotosLa Fortuna, Costa Rica. Downtown La Fortuna, Costa Rica, with the Arenal Volcano shrouded in clouds in the backgroundRio Celeste, Costa Rica. Rio Celeste River in Terino Volcano National Park, Costa Rica, with milky-blue water because of the minerals dissolved in it Royalty Free Stock PhotographyRio Celeste, Costa Rica. Rio Celeste River in Terino Volcano National Park, Costa Rica, with milky-blue water because of the minerals dissolved in itManuel Antonio, Costa Rica. The beach at Manuel Antonio, Costa Rica, with Punta Catedral Cathedral Point and Manuel Antonio National Park in the distance Royalty Free Stock PhotographyManuel Antonio, Costa Rica. The beach at Manuel Antonio, Costa Rica, with Punta Catedral Cathedral Point and Manuel Antonio National Park in the distanceBlue Hole in Rio Celeste, Costa Rica. Blue Hole on the Rio Celeste River in Terino Volcano National Park, Costa Rica, with milky-blue water because of the Royalty Free Stock ImagesBlue Hole in Rio Celeste, Costa Rica. Blue Hole on the Rio Celeste River in Terino Volcano National Park, Costa Rica, with milky-blue water because of theRio Celeste Waterfall, Costa Rica. Rio Celeste Waterfall in Terino Volcano National Park, Costa Rica Stock PhotosRio Celeste Waterfall, Costa Rica. Rio Celeste Waterfall in Terino Volcano National Park, Costa RicaHarbor Seal. Resting on a rock in Monterey Bay, California Stock PhotosHarbor Seal. Resting on a rock in Monterey Bay, CaliforniaWhite Ibis. Portrait of a White Ibis in the southern bayou, taken in Brazos Bend State Park in Houston, Texas Stock ImagesWhite Ibis. Portrait of a White Ibis in the southern bayou, taken in Brazos Bend State Park in Houston, TexasLa Fortuna, Costa Rica. Downtown La Fortuna, Costa Rica, with the Arenal Volcano shrouded in clouds in the background Royalty Free Stock PhotosLa Fortuna, Costa Rica. Downtown La Fortuna, Costa Rica, with the Arenal Volcano shrouded in clouds in the backgroundSan Francisco Skyline. (Telegraph Hill) at dusk, with the Coit Tower prominently in view and the San Francisco Bay in the background and the Richmond-san Rafael Stock ImagesSan Francisco Skyline. (Telegraph Hill) at dusk, with the Coit Tower prominently in view and the San Francisco Bay in the background and the Richmond-san RafaelMt. Shasta. A massive volcano, in northern California Stock PhotosMt. Shasta. A massive volcano, in northern CaliforniaNarada Falls. With a rainbow in Mount Rainier National Park Stock PhotoNarada Falls. With a rainbow in Mount Rainier National ParkSan Francisco Skyline. (Telegraph Hill), with the Coit Tower prominently in view and the San Francisco Bay in the background and the Richmond-san Rafael bridge Royalty Free Stock PhotosSan Francisco Skyline. (Telegraph Hill), with the Coit Tower prominently in view and the San Francisco Bay in the background and the Richmond-san Rafael bridgeMount Rainier. In  National Park Royalty Free Stock PhotographyMount Rainier. In National ParkCrater Lake. In  National Park in Oregon Stock ImageCrater Lake. In National Park in OregonCrater Lake. In  National Park Royalty Free Stock PhotoCrater Lake. In National ParkCrater Lake. National Park in Oregon Stock PhotosCrater Lake. National Park in OregonNorth Cascades. Highway in  National Park Stock ImagesNorth Cascades. Highway in National ParkNorth Cascades. Mountain Peaks in North Cascades National Park Royalty Free Stock PhotoNorth Cascades. Mountain Peaks in North Cascades National ParkRio Celeste Waterfall, Costa Rica. Rio Celeste Waterfall in Terino Volcano National Park, Costa Rica Stock PhotographyRio Celeste Waterfall, Costa Rica. Rio Celeste Waterfall in Terino Volcano National Park, Costa RicaStarfish on beach. Starfish (Sea Star) on the beach in Naples, Florida Stock ImageStarfish on beach. Starfish (Sea Star) on the beach in Naples, FloridaStarfish on beach. Starfish (Sea Star) on the beach in Naples, Florida Stock ImagesStarfish on beach. Starfish (Sea Star) on the beach in Naples, FloridaStarfish on beach. Starfish (Sea Star) on the beach in Naples, Florida Stock PhotosStarfish on beach. Starfish (Sea Star) on the beach in Naples, FloridaStarfish on beach. Starfish (Sea Star) on the beach in Naples, Florida Royalty Free Stock ImagesStarfish on beach. Starfish (Sea Star) on the beach in Naples, FloridaManuel Antonio, Costa Rica. The beach at Manuel Antonio, Costa Rica, with Punta Catedral Cathedral Point and Manuel Antonio National Park in the distance Royalty Free Stock PhotosManuel Antonio, Costa Rica. The beach at Manuel Antonio, Costa Rica, with Punta Catedral Cathedral Point and Manuel Antonio National Park in the distanceAlcatraz Island. In the San Francisco Bay, once a heavily-guarded federal prison, now a national landmark Stock ImagesAlcatraz Island. In the San Francisco Bay, once a heavily-guarded federal prison, now a national landmarkSeattle Skyline. With downtown Seattle and the Space Needle in view and the Puget Sound in the background, taken from the Skyview Observatory in Columbia Royalty Free Stock PhotographySeattle Skyline. With downtown Seattle and the Space Needle in view and the Puget Sound in the background, taken from the Skyview Observatory in ColumbiaAlcatraz Island. In the San Francisco Bay, once a heavily-guarded federal prison, now a national landmark Royalty Free Stock ImagesAlcatraz Island. In the San Francisco Bay, once a heavily-guarded federal prison, now a national landmarkKatydid. Close-up of a Fork-tailed Bush Katydid Stock PhotosKatydid. Close-up of a Fork-tailed Bush KatydidKatydid. Close-up of a Fork-tailed Bush Katydid Royalty Free Stock ImageKatydid. Close-up of a Fork-tailed Bush KatydidAnhinga Portrait. An Anhinga (also known as Snake Bird, Water Turkey), in J.N. Ding Darling National Wildlife Refuge on Sanibel Island, Florida in the Gulf of Stock PhotoAnhinga Portrait. An Anhinga (also known as Snake Bird, Water Turkey), in J.N. Ding Darling National Wildlife Refuge on Sanibel Island, Florida in the Gulf ofNagoya Castle. In cherry blossom, in Nagoya, Japan Royalty Free Stock PhotoNagoya Castle. In cherry blossom, in Nagoya, JapanNagoya Castle. In cherry blossom, in Nagoya, Japan Stock PhotoNagoya Castle. In cherry blossom, in Nagoya, JapanPurple Gallinule. Taken at Brazos Bend State Park Stock ImagesPurple Gallinule. Taken at Brazos Bend State ParkLassen Volcano. Reflected in a lake in Lassen Volcanic National Park in California Stock ImagesLassen Volcano. Reflected in a lake in Lassen Volcanic National Park in CaliforniaGolden Gate Bridge in fog. At sunset, with fog rolling over the San Francisco Bay and the University of California Saint Ignatius Church in the foreground Stock PhotosGolden Gate Bridge in fog. At sunset, with fog rolling over the San Francisco Bay and the University of California Saint Ignatius Church in the foregroundHarbor Seal. Resting on a rock in Monterey Bay, California Stock ImageHarbor Seal. Resting on a rock in Monterey Bay, CaliforniaSnowy Owl. Portrait, taken at Delaware Seashore State Park Stock ImageSnowy Owl. Portrait, taken at Delaware Seashore State ParkSnowy Owl. Portrait, taken at Delaware Seashore State Park Stock ImageSnowy Owl. Portrait, taken at Delaware Seashore State ParkMale Wood Duck. In full breeding plumage Royalty Free Stock PhotoMale Wood Duck. In full breeding plumageSnowy Egret Portrait. Snowy Egret Close-up -- a Snowy Egret on the beach in Naples, Florida Royalty Free Stock ImagesSnowy Egret Portrait. Snowy Egret Close-up -- a Snowy Egret on the beach in Naples, FloridaGiant Panda. Tai Shan at the National Zoo in Washington D.C Royalty Free Stock PhotoGiant Panda. Tai Shan at the National Zoo in Washington D.CHouse Finch. Taken at Antietam National Battlefield Royalty Free Stock ImageHouse Finch. Taken at Antietam National BattlefieldGreat Wall of China. From Simatai (Si Ma Tai), north of Beijing Stock ImageGreat Wall of China. From Simatai (Si Ma Tai), north of BeijingGrand Canyon. With the Colorado River in view,  National Park, Arizona Stock PhotosGrand Canyon. With the Colorado River in view, National Park, ArizonaPerce Rock. In the  Gulf of Saint Lawrence Stock ImagePerce Rock. In the Gulf of Saint LawrenceBryce Canyon. Hoodoos rock formation in Bryce Canyon National Park Royalty Free Stock PhotosBryce Canyon. Hoodoos rock formation in Bryce Canyon National ParkBryce Canyon. Hoodoos rock formation in Bryce Canyon National Park Stock PhotoBryce Canyon. Hoodoos rock formation in Bryce Canyon National ParkBryce Canyon. Hoodoos rock formation in Bryce Canyon National Park Stock ImageBryce Canyon. Hoodoos rock formation in Bryce Canyon National ParkBryce Canyon. Hoodoos rock formation in Bryce Canyon National Park Royalty Free Stock ImageBryce Canyon. Hoodoos rock formation in Bryce Canyon National ParkTricolored Blackbird. Taken at Upper Klamath National Wildlife Refuge, Oregon Royalty Free Stock PhotosTricolored Blackbird. Taken at Upper Klamath National Wildlife Refuge, OregonSan Francisco Skyline at night. San Francisco Skyline (Telegraph Hill) at night, with the Coit Tower prominently in view and the San Francisco Bay in the Stock ImageSan Francisco Skyline at night. San Francisco Skyline (Telegraph Hill) at night, with the Coit Tower prominently in view and the San Francisco Bay in theGrassshopper. A grasshopper on a twig basking in the early morning sun Royalty Free Stock ImageGrassshopper. A grasshopper on a twig basking in the early morning sunSeattle Skyline at night. With the Space Needle in the foreground and Mount Rainier in the background, taken from Kerry Park Stock PhotoSeattle Skyline at night. With the Space Needle in the foreground and Mount Rainier in the background, taken from Kerry ParkBalanced Rock. In Arches National Park, Utah Royalty Free Stock PhotographyBalanced Rock. In Arches National Park, UtahWestern Gull. At San Francisco's Fisherman's Wharf Stock ImagesWestern Gull. At San Francisco's Fisherman's WharfDelicate Arch. In Arches National Park, Utah Royalty Free Stock PhotoDelicate Arch. In Arches National Park, UtahDelicate Arch. In Arches National Park, Utah Royalty Free Stock ImagesDelicate Arch. In Arches National Park, UtahTree Swallow. Resting outside a nesting box Stock PhotographyTree Swallow. Resting outside a nesting boxCarolina Wren. Perched on a tree, taken at a county park in Virginia Royalty Free Stock PhotosCarolina Wren. Perched on a tree, taken at a county park in VirginiaSan Francisco Skyline. With the entire city in view and the San Francisco Bay in the background, taken from Twin Peaks Park Stock PhotographySan Francisco Skyline. With the entire city in view and the San Francisco Bay in the background, taken from Twin Peaks ParkGreat Wall of China. From Simatai (Si Ma Tai), north of Beijing Royalty Free Stock PhotographyGreat Wall of China. From Simatai (Si Ma Tai), north of BeijingLesser Scaup. (a sea duck) swimming in the Chesapeake Bay Royalty Free Stock ImagesLesser Scaup. (a sea duck) swimming in the Chesapeake BayBird Silhouette at sunset. Silhouette of a shorebird (a Willet) at sunset on the beach in Naples, Florida Stock ImageBird Silhouette at sunset. Silhouette of a shorebird (a Willet) at sunset on the beach in Naples, FloridaSeattle Public Library. The Red Room in Seattle Public Library Stock ImageSeattle Public Library. The Red Room in Seattle Public LibraryHermit Thrush. Foraging on the forest floor Stock PhotographyHermit Thrush. Foraging on the forest floorPier 39 Sea Lion. California Sea Lion at San Franciscos Fishermans Wharf, Pier 39 Royalty Free Stock PhotosPier 39 Sea Lion. California Sea Lion at San Franciscos Fishermans Wharf, Pier 39Monument Valley. Mesas and Buttes in Monument Valley, Navajo Country, near the Arizona-Utah border Royalty Free Stock PhotosMonument Valley. Mesas and Buttes in Monument Valley, Navajo Country, near the Arizona-Utah borderGreat Wall of China. From Simatai (Si Ma Tai), north of Beijing Stock PhotoGreat Wall of China. From Simatai (Si Ma Tai), north of BeijingFushimi Inari Shrine. Or Fushimi Inari Taisha, in Kyoto Japan Royalty Free Stock ImagesFushimi Inari Shrine. Or Fushimi Inari Taisha, in Kyoto JapanFushimi Inari Shrine. Or Fushimi  Inari Taisha, in Kyoto Japan Royalty Free Stock PhotoFushimi Inari Shrine. Or Fushimi Inari Taisha, in Kyoto JapanFushimi Inari Shrine. Or Fushimi Inari Taisha, in Kyoto Japan Stock ImagesFushimi Inari Shrine. Or Fushimi Inari Taisha, in Kyoto JapanGreat Wall in China. Great Wall, seen through a beacon window, in Mutianyu, Beijing, China Stock PhotographyGreat Wall in China. Great Wall, seen through a beacon window, in Mutianyu, Beijing, ChinaPier 39 Sea Lion. California Sea Lion at San Franciscos Fishermans Wharf, Pier 39 Royalty Free Stock PhotoPier 39 Sea Lion. California Sea Lion at San Franciscos Fishermans Wharf, Pier 39Pier 39 Sea Lion. California Sea Lion at San Francisco's Fisherman's Wharf, Pier 39 Royalty Free Stock ImagesPier 39 Sea Lion. California Sea Lion at San Francisco's Fisherman's Wharf, Pier 39Pier 39 Sea Lion. California Sea Lion at San Franciscos Fishermans Wharf, Pier 39 Royalty Free Stock PhotographyPier 39 Sea Lion. California Sea Lion at San Franciscos Fishermans Wharf, Pier 39Washington Monument. During the Cherry Blossom Festival, from the Tidal Basin Stock PhotographyWashington Monument. During the Cherry Blossom Festival, from the Tidal BasinCicada emerging. A dog-day cicada emerging from its nymphal skin, transforming from pupa to adult Royalty Free Stock ImagesCicada emerging. A dog-day cicada emerging from its nymphal skin, transforming from pupa to adultCicada emerging. A dog-day cicada emerging from its nymphal skin, transforming from pupa to adult Stock ImageCicada emerging. A dog-day cicada emerging from its nymphal skin, transforming from pupa to adultFemale Wood Duck. In full breeding plumage Royalty Free Stock PhotosFemale Wood Duck. In full breeding plumageGolden Gate Bridge. At twilight, from Vista Point in Marin County Stock ImagesGolden Gate Bridge. At twilight, from Vista Point in Marin CountyGreat Wall in China. Great Wall at Mutianyu near Beijing, China Royalty Free Stock PhotoGreat Wall in China. Great Wall at Mutianyu near Beijing, ChinaGreat Wall in China. Great Wall at Mutianyu near Beijing, China Stock PhotoGreat Wall in China. Great Wall at Mutianyu near Beijing, ChinaRed-tailed Hawk. With a sharp gaze (in Virginia Stock ImageRed-tailed Hawk. With a sharp gaze (in VirginiaTricolored Blackbird. Taken at Upper Klamath National Wildlife Refuge, Oregon Stock PhotosTricolored Blackbird. Taken at Upper Klamath National Wildlife Refuge, OregonWhite Mountains. Alpine meadow on the top of New Hampshire's White Mountains Stock ImagesWhite Mountains. Alpine meadow on the top of New Hampshire's White MountainsWhite Mountains. Alpine meadow on the top of New Hampshire's White Mountains Stock ImageWhite Mountains. Alpine meadow on the top of New Hampshire's White MountainsRed-tailed Hawk. Ready to take off Royalty Free Stock PhotosRed-tailed Hawk. Ready to take offTricolored Heron. (Louisiana Heron) in full breeding plumage Stock PhotoTricolored Heron. (Louisiana Heron) in full breeding plumageLime Kiln Point Lighthouse. On San Juan Island, Washington State, facing Strait Juan de Fuca Stock PhotosLime Kiln Point Lighthouse. On San Juan Island, Washington State, facing Strait Juan de FucaYellowstone River. In the Roosevelt District of Yellowstone National Park Stock PhotoYellowstone River. In the Roosevelt District of Yellowstone National ParkEastern Bluebird. Taking a bath Stock PhotographyEastern Bluebird. Taking a bathEastern Bluebird. Taking a bath Royalty Free Stock PhotosEastern Bluebird. Taking a bathGrand Canyon in storm. Grand Canyon in a storm, Grand Canyon National Park, Arizona Royalty Free Stock ImageGrand Canyon in storm. Grand Canyon in a storm, Grand Canyon National Park, ArizonaPurple Sandpiper. Dodging the wind Royalty Free Stock PhotosPurple Sandpiper. Dodging the windPurple Sandpiper. Standing on one leg on a rock Stock PhotosPurple Sandpiper. Standing on one leg on a rockPurple Sandpiper. Standing on a rock Royalty Free Stock PhotoPurple Sandpiper. Standing on a rockLower Falls of Yellowstone. Taken at Yellowstone National Park Royalty Free Stock PhotosLower Falls of Yellowstone. Taken at Yellowstone National ParkPied-billed Grebe. Taken at Chesapeake and Ohio Canal National Historical Site (Great Falls, Maryland Royalty Free Stock PhotographyPied-billed Grebe. Taken at Chesapeake and Ohio Canal National Historical Site (Great Falls, MarylandPied-billed Grebe. Taken at Chesapeake and Ohio Canal National Historical Site (Great Falls, Maryland Stock PhotosPied-billed Grebe. Taken at Chesapeake and Ohio Canal National Historical Site (Great Falls, MarylandLime Kiln Point Lighthouse. On San Juan Island, Washington State facing Strait of Juan de Fuca Royalty Free Stock ImageLime Kiln Point Lighthouse. On San Juan Island, Washington State facing Strait of Juan de FucaRed-throated Loon. In winter plumage swimming in the Potomac River in Washington D.C Royalty Free Stock ImageRed-throated Loon. In winter plumage swimming in the Potomac River in Washington D.CRed-throated Loon. In winter plumage swimming in the Potomac River in Washington D.C Stock PhotographyRed-throated Loon. In winter plumage swimming in the Potomac River in Washington D.CAmerican Alligator. At Everglades National Park Royalty Free Stock PhotosAmerican Alligator. At Everglades National ParkHarbor Seal Family Relaxing. Portrait of a Harbor Seal family relaxing on rocks, taken along California Highway 1, near Point Arena Royalty Free Stock PhotosHarbor Seal Family Relaxing. Portrait of a Harbor Seal family relaxing on rocks, taken along California Highway 1, near Point ArenaJoshua Tree at Sunset. Taken at Joshua Tree National Park Royalty Free Stock ImageJoshua Tree at Sunset. Taken at Joshua Tree National ParkRed-shouldered Hawk. Perched on a road sign Stock ImageRed-shouldered Hawk. Perched on a road signSwamp Sparrow in the cold. Close-up of a Swamp Sparrow, feathers fluffed up in the cold winter Stock PhotosSwamp Sparrow in the cold. Close-up of a Swamp Sparrow, feathers fluffed up in the cold winterProthonotary Warbler. Drinking nectar from a flower Stock PhotographyProthonotary Warbler. Drinking nectar from a flowerWild Turkey Portrait. A closeup of a bird that near became our national bird, taken in Cape Cod National Seashore Stock PhotographyWild Turkey Portrait. A closeup of a bird that near became our national bird, taken in Cape Cod National SeashoreRed-shouldered Hawk. Perched on a tree branch in VIrginia Royalty Free Stock PhotographyRed-shouldered Hawk. Perched on a tree branch in VIrginiaDiamond Head Lighthouse. In Honolulu, Hawaii Royalty Free Stock PhotographyDiamond Head Lighthouse. In Honolulu, HawaiiSaguaro Cactus at Sunset. Taken at Saguaro National Park Royalty Free Stock PhotoSaguaro Cactus at Sunset. Taken at Saguaro National ParkMount Rainier and Nisqually River. Mount Rainier in Mount Rainier National Park, with Nisqually River in the foreground Royalty Free Stock ImageMount Rainier and Nisqually River. Mount Rainier in Mount Rainier National Park, with Nisqually River in the foregroundRuby-crowned Kinglet. Perched on a tree branch Royalty Free Stock PhotographyRuby-crowned Kinglet. Perched on a tree branchAcadia National Park. Atlantic Coast at Acadia National Park (near Schooner Beach Stock PhotoAcadia National Park. Atlantic Coast at Acadia National Park (near Schooner BeachTricolored Heron Portrait. Tricolored Heron (Louisiana Heron) in Everglades National Park Stock PhotographyTricolored Heron Portrait. Tricolored Heron (Louisiana Heron) in Everglades National ParkBlue-gray Gnatcatcher. A blue-gray gnatcatcher singing from a tree branch Royalty Free Stock PhotosBlue-gray Gnatcatcher. A blue-gray gnatcatcher singing from a tree branchBlue-gray Gnatcatcher. A blue-gray gnatcatcher dancing on a tree branch Stock ImageBlue-gray Gnatcatcher. A blue-gray gnatcatcher dancing on a tree branchSan Francisco Palace of Fine Arts. Palace of Fine Arts museum building and rotunda in San Francisco, California Royalty Free Stock PhotosSan Francisco Palace of Fine Arts. Palace of Fine Arts museum building and rotunda in San Francisco, CaliforniaSan Francisco Palace of Fine Arts. Palace of Fine Arts museum building and rotunda in San Francisco, California, reflected in the pond in early morning sunlight Stock ImageSan Francisco Palace of Fine Arts. Palace of Fine Arts museum building and rotunda in San Francisco, California, reflected in the pond in early morning sunlightJefferson Memorial at night. Jefferson Memorial in Washington D.C. from the Tidal Basin Stock PhotographyJefferson Memorial at night. Jefferson Memorial in Washington D.C. from the Tidal BasinSea Shell from Sanibel and Captiva Islands. In Florida Stock PhotosSea Shell from Sanibel and Captiva Islands. In FloridaSea Shell from Sanibel and Captiva Islands. In Florida Royalty Free Stock PhotoSea Shell from Sanibel and Captiva Islands. In FloridaSea Shell from Sanibel and Captiva Islands. In Florida Stock ImageSea Shell from Sanibel and Captiva Islands. In Florida