Lined Antshrike
Thamnophilus tenuepunctatus
The lined antshrike is 15 to 16 cm (5.9 to 6.3 in) long and weighs 22 to 23 g (0.78 to 0.81 oz). Members of genus Thamnophilus are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits marked sexual dimorphism though both sexes have a crest. Adult males of the nominate subspecies are almost entirely plumaged with narrow white and wider black bars. Their crown and crest are black and their throat is streaked black and white. Adult females have a rufous crown, crest, upperparts, wings, and tail. Voice: The lined antshrike's song is "an accelerating series of abrupt nasal notes that rises in pitch initially, falls towards end, and terminates in strong, downslurred raspy note". It has been written as "hah-ha-ha-hahahahahahahaha-hánh".
ID text from Wikipedia, CC BY-SA 4.0
Uniform Antshrike
Thamnophilus unicolor
The uniform antshrike is 14.5 to 17 cm (5.7 to 6.7 in) long and weighs about 24 g (0.85 oz). Members of genus Thamnophilus are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits significant sexual dimorphism. Adult males of the nominate subspecies are mostly deep gray or blackish gray. They sometimes have white tips on their outer tail feathers. Adult females have a rufous crown and a gray face. Their upperparts are rufous brown and their underparts pale rufous brown. Immatures of both sexes are similar to adult females. Voice: The uniform antshrike's song has been described as "a simple short series of nasal notes, each note sometimes with rising inflection, 'anh, anh, anh, anh' (sometimes 3 or 5 notes)" and as "a slightly accelerating and rising, slow series of 4–8 high, descending notes NYAH NYAH-nyah-nyah". The song of subspecies T. u. caudatus is similar to that of the other two but higher pitched.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Lined Antshrike and Uniform Antshrike.