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Bird watching
4
Ornithology--Societies
4
etc
4
Horned Lark (Eremophila alpestris)
3
Bird surveys
2
Birds--Counting
2
Dark-eyed Junco (Junco hyemalis)
2
Jeff
2
Rupprecht
2
Snow Bunting (Plectrophenax nivalis)
2
Wildlife conservation
2
1919-
1
American Crow (Corvus brachyrhynchos)
1
American Goldfinch (Spinus tristis)
1
American Kestrel (Falco sparverius)
1
Bald Eagle (Haliaeetus leucocephalus)
1
Birds--Identification
1
Birds--Migration
1
Birds--Research
1
Black-capped Chickadee (Poecile atricapillus)
1
Blue Jay (Cyanocitta cristata)
1
Bowen
1
C. Philip (Charles Philip)
1
Cedar Waxwing (Bombycilla cedrorum)
1
Clark C.
1
Common Pheasant (Phasianus colchicus)
1
Common Pigeon (Columba livia)
1
Common Snipe (Gallinago gallinago)
1
Common Starling (Sturnus vulgaris)
1
Cox
1
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