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21,203 species in Colorado
Lanius ludovicianus
Cinclus mexicanus
Selasphorus rufus
Larus smithsonianus
Aythya valisineria
Leucophaeus pipixcan
Mimus polyglottos
Nycticorax nycticorax
Tringa melanoleuca
Geothlypis tolmiei
Vireo plumbeus
Gallinago delicata
Aeronautes saxatalis
Chordeiles minor
Anthus rubescens
Phalaropus tricolor
Sphyrapicus nuchalis
Buteo regalis
Accipiter striatus
Passerculus sandwichensis
Plegadis chihi
Podiceps auritus
Falco mexicanus
Tringa flavipes
Antigone canadensis
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