Black-capped chickadee / Schwarzkopfmeise (Poecile atricapillus)
Wikipedia eBird A-Z Animals Audubon AllAboutBirds Xeno-Canto NABUBlack-capped chickadee. 2023-10-13 14:45:40 New England NIKON D5600 ISO 3200
Exposure 0.003
Classification: Genus Poecile; Family Titmice (Paridae)
This bird appears across the great seas in the following continents: Europe, North America.
I was surprised to see that the chickadees I saw in Maryland are not the same ones as in New England: Carolina and black-capped.Wikipedia says they 'most likely diverged about 2.5 million years ago'!
Only documented observation: 2023-10-13