 Scaled Quail: Baca Co., CO |
 Western Meadowlark: Bent Co., CO |
 Western Meadowlark: Bent Co., CO |
 Sage Thrasher: Alamosa NWR, Alamosa Co., CO |
 Mountain Bluebird: Alamosa NWR, Alamosa Co., CO |
 Sage Thrasher: Alamosa NWR, Alamosa Co., CO |
 Sage Thrasher: Alamosa NWR, Alamosa Co., CO |
 baby American Coot: Alamosa NWR, Alamosa Co., CO |
 Williamson's Sapsucker: Sphyrapicus thyroideus, Archuleta Co., CO |
 Violet-green Swallow: Tachycineta thalassina, Archuleta Co., CO |
 Red-tailed Hawk (western): Archuleta Co., CO |
 Lewis's Woodpecker: Melanerpes lewis, Archuleta Co., CO |
 Black Swift (Cypseloides niger) on nest: Ouray Co., CO |
 Brewer's Sparrow: Spizella breweri, Gunnison Co., CO |
 juvenile Pinyon Jay: Gymnorhinus cyanocephalus, Mesa Co., CO |
 drake Ruddy Duck: Jackson Co., CO |
 Ruddy Duck pair: Jackson Co., CO |
 drake Ruddy Duck: Jackson Co., CO |
 Eared Grebe: Jackson Co., CO |
 male Yellow-headed Blackbird: Jackson Co., CO |
 Western Grebe pair exchanging fish: Jackson Co., CO |
 Western Grebe pair: Jackson Co., CO |
 Western Grebe: Jackson Co., CO |
 Western Grebe: Jackson Co., CO |
 Western Grebe: Jackson Co., CO |
 Golden Eagle pair: Arapaho NWR, Jackson Co., CO |
 California Gull: Larus californicus, Arapaho NWR, Jackson Co., CO |
 Brown-capped Rosy-finch: Rocky Mountain NP, Larimer Co., CO |
 Brown-capped Rosy-finch: Rocky Mountain NP, Larimer Co., CO |
 Brown-capped Rosy-finch: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 White-tailed Ptarmigan: Rocky Mountain NP, Larimer Co., CO |
 female Broad-tailed Hummingbird: Rocky Mountain NP, Larimer Co., CO |
 Lincoln's Sparrow: Rocky Mountain NP, Larimer Co., CO |
 female McCown's Longspur: Pawnee National Grassland, Weld Co., CO |
 immature male Chestnut-collared Longspur: Calcarius ornatus, Pawnee National Grassland, Weld Co., CO |
 American Avocet: Pawnee National Grassland, Weld Co., CO |
 Swainson's Hawk: Pawnee National Grassland, Weld Co., CO |
 Marbled Godwit: Weld Co., CO |
 Family Passeridae: Eurasian Tree Sparrow (Passer montanus), Madison Co., IL |