Black-capped Chickadee (Poecile atricapillus) アメリカコガラ
The Black-capped Chickadee is native to the Northern US and Most of Canada. There is a nearly identical Carolina Chickadee which is in the Southeast US. There is some overlap in the ranges.
This Black-capped Chickadee was in Salt Lake City. Utah 2017
Black-capped Chickadee. Utah 2017