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Popular traits
5,782 species in Rocky Mountain National Park
Spinus tristis
Sialia mexicana
Empidonax oberholseri
Mergus merganser
Callospermophilus lateralis
Bucephala clangula
Pelecanus erythrorhynchos
Spinus psaltria
Patagioenas fasciata
Nannopterum auritum
Mareca strepera
Dendragapus obscurus
Sturnus vulgaris
Ardea herodias
Mareca americana
Bombycilla cedrorum
Alces alces
Marmota flaviventris
Empidonax hammondii
Contopus cooperi
Aquila chrysaetos
Streptopelia decaocto
Odocoileus hemionus
Falco mexicanus
Catharus ustulatus
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