Black-capped Chickadee Poecile atricapilla
Flight call description A high, squeaky "syik".
Fig.1. New York March 19, 1989 (WRE).
Bird in short flight.
Similar species Carolina Chickadee P. carolinensis gives a softer, level or descending "tsee". See Boreal Chickadee, Tufted Titmouse, Brown Creeper, and Golden-crowned Kinglet.
Behavior Irruptive migrant. Nocturnal migrant but also seen in redetermined migration and in limited resumed migration. Calls regularly in short diurnal flights and is hypothesized to call in nocturnal migration.