About Poecile hudsonicus (J.R.Forster, 1772)
Adults of Poecile hudsonicus measure 12.5–14.5 cm (4.9–5.7 in) in length and weigh 7–12.4 g (0.25–0.44 oz). They have grey-brown upperparts, a brown cap, and greyish wings and tail. Their face is primarily grey with white coloring on the sides. Their underparts are white, with brown markings on the flanks and a black patch on the throat. This species has a short dark bill, short wings, and a long notched tail. Its flight pattern consists of brief glides followed by fast, bouncy wing beats as it moves through the air.
