Rotkopf-Ente. 1). Männlich. 2). Weiblich.
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Amerikanische Rohrdommel. 1). Männlich. 2). Weiblich.
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Amerikanische Grünflügeltaube. 1). Männlich. 2). Weiblich.
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Amerikanische Scoter Duck. 1). Männlich. 2). Weiblich.
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Fregatte Pelican Man of War Bird. Männlich.
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Common Osprey, Fish Hawk. - Public domain zoological illustration
Public domain scan - Fish, 19th-century zoological illustration, print, free to use, no copyright restrictions image - Picryl description
Clif Swallow. (Nests) - Drawing. Public domain image.
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Kleiner Schopfschnäpper. 1). Männlich; 2. Weiblich. (Sassafras. Laurus...
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Kapuzengrasmücke, 1. Männlich, 2. Weiblich. Erithryna herbacea.
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Gelbkehlrohrsänger, Männchen. (Chinquapin. Castanea pumila.)
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Schwarzkehlrohrsänger. 1). Männlich. 2). Weiblich. (Die kanadische Kol...
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Tawny Thrush . Male. (Habenaria Lacera - Cornus Canadensis.)
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Amerikanische Pipit oder Titlark. 1). Männlich. 2). Weiblich.
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Uferlerche. 1). Männchen, Sommergefieder. 2). D-o Winter. 3). Weiblich...
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Lerchensporn vorhanden. 1). 2). Erwachsene. 3). Jung.
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Liederfink. 1). Männlich. 2). Weiblich. (Huckle-berry oder Blue tangle...
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Gemeiner Kiefernfink. 1). Männlich. 2). Weiblich.
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Schwarzkopf-Song-Großschnabel. 1). Männer. 2). Weiblich. 3). Junge Män...
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Weißäugiger Vireo oder Greenlet. Männlich. (Stolz auf China oder Perle...
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Bartrams Vireo oder Greenlet. Männlich. (Ipomea)
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Harris 'Specht. 1). Männlich. 2). Weiblich.
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Rotkakaduspecht. 1). 2). Männer. 3). Weiblich.
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Key-West-Taube. 1). Männlich. 2). Weiblich.
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Wooping Crane. Male, adult. - Drawing. Public domain image.
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Schwarzbauchregenpfeifer. 1). Männlich. 2). Jung im Herbst. 3). Nestin...
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Amerikanischer Goldregenpfeifer. 1). Sommergefieder, 2. Winter, 3. Vie...
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Wilsons Flussregenpfeifer. 1). Männlich. 2). Weiblich.
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Greenshank. Male. - Drawing. Public domain image.
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Trumpeter Swan. Adult. - Drawing. Public domain image.
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American Widgeon. 1). Männlich. 2). Weiblich.
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Pied Duck. 1. Male. 2. Female. - Public domain zoological illustration
Picryl description: Public domain image of a bird in flight, free to use, no copyright restrictions.
White Merganser Smew. Weiße Nonne. 1). Männlich. 2). Weiblich.
Picryl description: Public domain image of a bird in flight, free to use, no copyright restrictions.
Schwarzer Skimmer oder Shearwater. Männlich.
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Bonapartes Möwe. 1). Männchen im Frühling. 2). Weiblich. 3). Young fir...
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Arctic Jager. - Drawing. Public domain image.
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Knopfschnabelphaleris. Erwachsene.
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Sprague's Missouri Lark. Male. - Public domain zoological illustration
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Nuttal's Whip-poor-will. Male. - Drawing. Public domain image.
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Western Shore Lark. Male. - Public domain zoological illustration
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Baird's Bunting. Male. - Drawing. Public domain image.
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Gemeinsamer Basstölpel. 1). Erwachsener Mann. 2). Jung.
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American Flamingo. Adult Male. - Public domain zoological illustration
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Red-tailed Buzzard. - Drawing. Public domain image.
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Sparrow Hawk. - Drawing. Public domain image.
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Burrowing Day-Owl. - Drawing. Public domain image.
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Tengmalm's Night-Owl. - Drawing. Public domain image.
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Great Cinereous Owl. - Public domain zoological illustration
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Traills Fliegenfänger. Männlich. (Süßer Kaugummi. Liquidambar Styracif...
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Townsend's Waldsänger. Männlich. (Carolina Alcspice [Piment].)
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Einsiedler-Waldsänger. 1). Männlich. 2). Weiblich. (Erdbeerbaum.)
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Delafields Erdgrasmücke. Männlich.
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Swainsons Sumpfrohrsänger. Männlich. (Orangefarbene Azalee. Azalea cal...
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Große Carolina-Zaunkönigin. 1). Männlich. 2). Weiblich. (Zwerg-Bock-Au...
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Hudson's Bay Titmouse. 1). Männlich. 2). Weiblich. 3). Jung.
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Arctic Blue Bird. 1). Männlich. 2). Weiblich.
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Schwarzkehlammer. 1). Männlich. 2). Weiblich.
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Henslow's Bunting. Männlich. (Indisches Rosa-Wurzel- oder Wurmgras. Sp...
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Chipping Bunting. Männlich. (Heuschrecke oder Falsche Akazie. Robina p...
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Mealy Redpoll Linnet. Male. - Drawing. Public domain image.
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Weißflügel-Kreuzschnabel. 1). Männer. 2). Frauen.
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Sommer-Rotvogel. 1). Männlich. 2). Weiblich. 3). Junge Männer. (Wilde ...
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Baltimore Pirol oder Hang-Nest. 1). Männlich erwachsen. 2). Junge Männ...
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Streuobstwiese oder Hang-Nest. 1). Männlich erwachsen. 2). Junge Männe...
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Rabe. Alter Mann. (Dickschalige Rinde Hickory).
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Columbia Magpie or Jay. Male. - Public domain zoological illustration
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Zedernvogel oder Zedernwachsflügel. 1). Männlich. 2). Weiblich. (Rote ...
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Rotbauchkleiber. 1). Männlich. 2). Weiblich.
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Anna Kolibri. 1). 2). Männer. 3). Weiblich. (Hibiscus Virginicus.)
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Eisvogel mit Gürtel. 1). Männlich. 2). Weiblich.
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Buntspecht. 1). Erwachsener Mann. 2). Erwachsene Frauen. 3. und 4. Jun...
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Rotkopfspecht. 1). Männer. 2). Weiblich. 3). Jung.
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Mangroven-Kuckuck. Männlich. (Sieben Jahre Apfel.)
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Amerikanisches Rebhuhn. 1). Männlich. 2). Weiblich. 3). Jung.
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Welcome Partridge. Young. - Public domain zoological illustration
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Flussuferläufer. 1). Männlich. 2). Weiblich.
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Halbpalmenstrandläufer. 1). Sommergefieder. 2). Winter.
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Erwachsene Phalarope. 1). Erwachsene. Männlich. 2). Wintergefieder.
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Havell's Tern. Adult. - Drawing. Public domain image.
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Dusky Shearwater. Männchen im Frühling.
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Bell's Vireo. Male. (Rattle-snake Root)
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Trumpeter Swan. Young. - Public domain zoological illustration
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Goshawk. - Public domain zoological illustration
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Barn or Chimney Swallow. - Public domain zoological illustration
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Gabelschwanzschnäpper. Gordonia Lasianthus.
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Swallow-tailed Flycatcher. - Public domain zoological illustration
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Der kleinste Pewee-Fliegenschnäpper. Männlich. (Weiße Eiche. Quercus P...
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Gelbe Rotkopfrohrsänger. 1). Männer. 2). Jung. (Wilder Orangenbaum.)
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Cuvier's Kinglet. Männlich. (Breitblättriger Lorbeer. Kalmia latifolia...
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Wütender Spottvogel. 1). 2). 3). Männer. 4. Weiblich.
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Bachstelze. 1). Männlich. 2). Weiblich. (Pflanze: Indische Rübe.)
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Kastanienhalsband-Lerchenammer. Männlich.
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Black-headed Goldfinch. Male. - Public domain zoological illustration
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Yarrells Stieglitz. 1). Männlich. 2). Weiblich.
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Schwarzgelb-Kronenfink.
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Wandernder Reisvogel. 1). Männlich. 2). Weiblich. (Roter Ahorn. Acer R...
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Rotflügelstar. 1). Männlicher Erwachsener. 2). Junge Männer. 3). Weibl...
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Fisch-Krähen. 1). Männlich. 2). Weiblich. (Heuschrecke. [Gleditschia t...
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Elster. 1). Männlich. 2). Weiblich.
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