The BioDiversity Institute
Internet Field Guide to Birds

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For birds of the U.S. and Canada, we currently have no images for the following 62 plumages:
(out of a total of 1504 plumages)

   Aleutian Tern  (Sterna aleutica)
       immature
       non-breeding

   Audubon's Oriole  (Icterus graduacauda)
       immature

   Aztec Thrush  (Ridgwayia pinicola)
       immature

   Bachman's Sparrow  (Aimophila aestivalis)
       immature

   Bachman's Warbler  (Vermivora bachmanii)
       female

   Bahama Honeycreeper  (Coroeba bahamensis)
       basic plumage

   Black Rosy-Finch  (Leucosticte atrata)
       immature

   Black-and-white Becard  (Pachyramphus albogriseus)
       all plumages

   Black-backed Wagtail  (Motacilla lugens)
       non-breeding

   Black-tailed Gull  (Larus crassirostris)
       immature 1st year

   Bohemian Waxwing  (Bombycilla garrulus)
       immature

   Botteri's Sparrow  (Aimophila botterii)
       immature

   Bridled Tern  (Sterna anaethetus)
       immature

   Cassin's Sparrow  (Aimophila cassinii)
       immature

   Chinese Pond-Heron  (Ardeola bacchus)
       all plumages

   Citrine Wagtail  (Motacilla citreola)
       all plumages

   Crested Auklet  (Aethia cristatella)
       immature

   Emperor Goose  (Chen canagica)
       immature

   Five-striped Sparrow  (Aimophila quinquestriata)
       immature

   Gray Bunting  (Emberiza variabilis)
       all plumages

   Gray Frog-Hawk  (Accipiter soloensis)
       all plumages

   Great Horned Owl  (Bubo virginianus)
       Arctic form

   Green-tailed Towhee  (Pipilo chlorurus)
       immature

   Gunnison Sage Grouse  (Centrocercus mimimus)
       female

   Gyrfalcon  (Falco rusticolus)
       immature - gray morph

   Himalayan Snowcock  (Tetraogallus himalayensis)
       immature

   Hook-billed Kite  (Chondrohierax uncinatus)
       immature - light morph

   Island Scrub-Jay  (Aphelocoma insularis)
       immature

   Least Tern  (Sterna antillarum)
       non-breeding

   Mallard  (Anas platyrhynchos)
       basic plumage- Mexican form

   Marsh Wren  (Cistothorus palustris)
       all plumages - Worthington's form

   Masked Booby  (Sula dactylatra)
       immature

   Northern Bobwhite  (Colinus virginianus)
       male - rufous form

   Nutmeg Mannikin  (Lonchura punctulata)
       immature

   Olivaceous Cormorant  (Phalacrocorax olivaceus)
       adult
       immature

   Orange Bishop  (Euplectes franciscanus)
       male non-breeding and female

   Pearly-breasted Cuckoo  (Coccyzus julieni)
       all plumages

   Pomarine Jaeger  (Stercorarius pomarinus)
       adult - dark morph

   Red Phalarope  (Phalaropus fulicaria)
       immature

   Rhinoceros Auklet  (Cerorhinca monocerata)
       immature

   Roseate Tern  (Sterna dougallii)
       immature

   Ross's Goose  (Chen rossii)
       immature - dark morph

   Ross's Gull  (Rhodostethia rosea)
       immature

   Rufous-winged Sparrow  (Aimophila carpalis)
       immature

   Rustic Bunting  (Emberiza rustica)
       male breeding

   Scarlet Ibis  (Eudocimus ruber)
       immature

   Shiny Cowbird  (Molothrus bonariensis)
       immature male 1st year - brown form

   Slaty-backed Gull  (Larus schistisagus)
       immature 1st summer

   Spectacled Eider  (Somateria fischeri)
       male non-breeding

   Townsend's Solitaire  (Myadestes townsendi)
       immature

   Varied Tit  (Baeolophus varius)
       all plumages

   Whiskered Auklet  (Aethia pygmaea)
       immature

   White-cheeked Pintail  (Anas bahamensis)
       immature

   White-rumped Sandpiper  (Calidris fuscicollis)
       immature

   White-tailed Hawk  (Buteo albicaudatus)
       immature 2nd year

   White-tailed Ptarmigan  (Lagopus leucurus)
       adult molting

   White-tailed Tropicbird  (Phaethon lepturus )
       immature

   Yellow Grosbeak  (Pheucticus chrysopeplus)
       female

   Yellow-breasted Bunting  (Emberiza aureola)
       all plumages

   Yellow-footed Gull  (Larus livens)
       immature 1st year


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