American Avocet (Recurvirostra americana) Cliff Swallow in Nest House Wren (Troglodytes aedon) Plumbeous Vireo (Vireo plumbeus) Great Crested Flycatcher (Myiarchus crinitus) Red-Headed Woodpecker (Melanerpes erythrocephalus) Red-Headed Woodpecker (Melanerpes erythrocephalus) 105° Common Nighthawk (Chordeiles minor) Colorado Birding Trail Dickcissel (Spiza americana) Northern Mockingbird (Mimus polyglottos) Lark Sparrow (Chondestes grammacus) Common Nighthawk (Chordeiles minor) Widow Skimmer (Libellula luctuosa) Roseate Skimmer (Orthemis ferruginea) Twelve-Spotted Skimmer (Libellula pulchella) Twelve-Spotted Skimmer (Libellula pulchella) Sand Creek Massacre National Historic Site Not one our nation's finest hours. in memoriam Plains Pocket Gopher (Geomys bursarius) Heat Wave Grack on a Hot Wooden Perch Yellow-Breasted Chat (Icteria virens) Yellow Warbler (Setophaga petechia) House Wren with Snack Red Crossbill (Loxia curvirostra) Eastern Kingbird (Tyrannus tyrannus) Showing Crown Warbling Vireo (Vireo gilvus) Warbling Vireo (Vireo gilvus) Paging Mr. Link. Mr. Bob O. Link. House Sparrow (Passer domesticus) Western Kingbird (Tyrannus verticalis) Western Wood-Pewee (Contopus sordidulus) Annular Solar Eclipse Blue-Gray Gnatcatcher (Polioptila caerulea) Western Bluebird (Sialia mexicana) Plumbeous Vireo (Vireo plumbeus) Black-Throated Sparrow (Amphispiza bilineata) Ash-Throated Flycatcher (Myiarchus cinerascens) Plumbeous Vireo (Vireo plumbeus) Green-Tailed Towhee (Pipilo chlorurus) Common Grackle (Quiscalus quiscula) White-Faced Ibis (Plegadis chihi) Song Sparrow (Melospiza melodia)