Collared whitestart

The collared whitestart (Myioborus torquatus), also known as the collared redstart, is a species of bird in the family Parulidae, the New World warblers. It is found in Costa Rica and Panama.

The collared whitestart is about 12 to 13.5 cm (4.7 to 5.3 in) long and weighs about 10 to 11 g (0.35 to 0.39 oz). The sexes have the same plumage. Adults have rufous central crown with a black border beneath it that extends to the nape; the rest of their head including the throat is yellow. Their upperparts and wings are slate gray. Their tail is blackish with much white on the outer two pairs of feathers. Their underparts are yellow with a slate gray band across the upper breast. They have a mouse-brown iris, a black bill, and dusky brown or black legs and feet. Juveniles have a slate gray head with no rufous or yellow. Their upperparts are dark slate gray with a brown wash. Their throat and breast are slate gray and their belly dull yellow.