Black-capped Chickadee (Poecile atricapillus)
Rocky Mountain NP , Colorado, USA. 12th April 2002. (Ref: CRW_2953)
![Black-capped Chickadee [atricapillus] (Poecile atricapillus atricapillus)](https://photos.smugmug.com/Birds/Passerines/Tits-Chickadees-Paridae/Black-capped-Chickadee-Poecile-atricapillus/i-c73sZwr/0/5692f119/Ti/00021156_D60-Ti.jpg)
![Black-capped Chickadee [atricapillus] (Poecile atricapillus atricapillus)](https://photos.smugmug.com/Birds/Passerines/Tits-Chickadees-Paridae/Black-capped-Chickadee-Poecile-atricapillus/i-fXGkQjq/0/29a4f86d/Ti/00021764_1DS1-Ti.jpg)