Summer in Colorado (July 2025) 

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Spinus tristis (American Goldfinch)

Turdus migratorius (American Robin)

Pelecanus erythrorhynchos (American Pelican)

Hirundo rustica (Barn Swallow)

Archilochus alexandri (Black-chinned Hummingbird)

Icterus bullockiorum (Bullock's Oriole)

Icterus bullockiorum (Bullock's Oriole)

Spizella passerina (Chipping Sparrow)

Spizella passerina (Chipping Sparrow)

Quiscalus quiscula (Common Grackle)

Corvus corax (Common Raven)

Astur cooperii (Cooper's Hawk)

Nannopterum auritum (Double-crested Cormorant)

Ardea alba (Great Egret)

Haemorhous mexicanus (House Finch)

Haemorhous mexicanus (House Finch)

Passer domesticus (House Sparrow)

Passer domesticus (House Sparrow)

Anas platyrhynchos (Mallard)

Zenaida macroura (Mourning Dove)

Colaptes auratus (Northern Flicker)

Stelgidopteryx serripennis (Northern Rough-winged Swallow)

Podilymbus podiceps (Pied-billed Grebe)

Spinus pinus (Pine Siskin)

Sitta pygmaea (Pygmy Nuthatch)

Agelaius phoeniceus (Red-winged Blackbird)

Larus delawarensis (Ring-billed Gull)

Aythya collaris (Ring-necked Duck)

Egretta thula (Snowy Egret)

Actitis macularius (Spotted Sandpiper)

Cathartes aura (Turkey Vulture)

Tyrannus verticalis (Western Kingbird)

Tyrannus verticalis (Western Kingbird)

Zonotrichia leucophrys (White-crowned Sparrow)

Pieris rapae (Cabbage White)

Colias philodice (Clouded Sulphur)

Pyrgus communis (Common Checkered-Skipper)

Nathalis iole (Dainty Sulphur)

Atrytonopsis hianna (Dusted Skipper)

Strymon melinus (Gray Hairstreak)

Danaus plexippus (Monarch)

Colias eurytheme (Orange Sulphur)

Vanessa cardui (Painted Lady)

Vanessa cardui (Painted Lady)

Phyciodes tharos (Pearl Crescent)

Lycaena arota (Tailed Copper)

Lycaena arota (Tailed Copper)

Lon taxiles (Taxiles Skipper)

Lon taxiles (Taxiles Skipper)

Limenitis weidemeyerii (Weidemeyer's Admiral)

Papilio rutulus (Western Tiger Swallowtail)

Ovis canadensis (Bighorn Sheep)

Ovis canadensis (Bighorn Sheep)

Cynomys ludovicianus (Black-tailed Prairie Dog)

Cynomys ludovicianus (Black-tailed Prairie Dog)

Sylvilagus floridanus (Eastern Cottontail)

Cervus canadensis nelsoni (Rocky Mountain Elk)

Alces alces shirasi (Shiras Moose)

Hemaris diffinis (Snowberry Clearwing)

Libellula pulchella (Twelve-spotted Skimmer)