Black-throated Bushtit
Aegithalos concinnus
The black-throated bushtit is a small passerine, around 10.5 cm long and weighing 4-9 g. There is considerable racial variation in the plumage, but all subspecies have a medium length tail, a black throat and a black 'bandit mask' around the eye. The nominate race has a chestnut cap, breast band and flanks and dark grey back, wings and tail, and a white belly. The other subspecies have generally the same pattern (minus the chest band) but with grey caps or all grey bellies and flanks. Both sexes are alike.
