Sooty Tyrannulet vs Straneck's Tyrannulet

Sooty Tyrannulet

Serpophaga nigricans

Tiny9 gShrubland

The sooty tyrannulet is overall a dark grey colour, with a brownish tinge to its upperparts, paler underparts, and the top of its head being somewhat darker. It has a white strip on its crown which is usually only partially visible, and its chin is whitish. On its wings it has two pale grey wingbars, and the flight feathers closest to its body are whitish. Its tail is black. It has brown irises, a black beak, and black legs. There is no difference between males and females, and there the juveniles have not been described. The sooty tyrannulet averages 118–127 mm (4.6–5.0 in) in total length.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Adriana Machado · CC BY 4.0

Straneck's Tyrannulet

Serpophaga griseicapilla

Tiny7 g

Straneck's tyrannulet is 9 to 11 cm (3.5 to 4.3 in) long and weighs 4.4 to 7.5 g (0.16 to 0.26 oz). The sexes have the same plumage. Adults have a gray crown and nape with a hidden bit of white on some black central crown feathers. They have a thin white supercilium, a white crescent under the eye, and a dark gray line through the eye on an otherwise grayish white face. Their upperparts are olivaceous brown. Their wings are dusky brownish gray with lighter edges to most of the flight feathers and two cinnamon to whitish wing bars. Voice: The main vocalization of Straneck's tyrannulet is "a high-pitched but not far-carrying 'twie tirrrrrrrrrrrrrrrrrr', occasionally with the first or second portions emitted alone". Its alarm call is "a more powerful, high-pitched 'tie...tie...tie...tie...' " of three to five notes.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Pablo H Capovilla · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Sooty Tyrannulet and Straneck's Tyrannulet.