Black-crowned Tityra
Tityra inquisitor
The black-capped tityra is 16.5 to 20.5 cm (6.5 to 8.1 in) long and weighs 33.8 to 70 g (1.2 to 2.5 oz). The species is sexually dimorphic. Adult males of the nominate subspecies T. i. inquisitor have a mostly black head. Their nape and upperparts are whitish gray with a pearly gray cast. Their wings are mostly black with grayish white tertials. Their tail is black. Their throat and underparts are white. Adult females have a buffy forehead and a black cap on an otherwise chestnut or rusty face. Voice: The black-crowned tityra is not highly vocal. It does make a variety of calls including "a husky grunting or dry guttural...variable sheh-shehk, squik or zick-zick-zick, and a series of low, weak, and nasal chet-chut, chaa-cherp notes". It also makes a "nasal grunting with buzzy quality, uurnt or uurnt-uurnt strange thin corre corre call".
ID text from Wikipedia, CC BY-SA 4.0
Black-tailed Tityra
Tityra cayana
This is a robust, short-tailed bird with a long, hook-tipped bill; like other tityras, it has a peculiar vestigial ninth primary feather. The adult black-tailed tityra is 20–22 centimetres (7.9–8.7 in) long and weighs 60–70 grams (2.1–2.5 oz). The male is dull white above and white below. The rectrices, the primary and secondary remiges and a cap extending to below the eyes are black; the tertiary remiges are silvery grey. Females have dark brown rather than black on wings and tail and some brown pattern on head, back and underside. Voice: This species has a buzzing short call rendered as ed, rek, urd or wenk. A double beeza-buzza and triple weenk, weenk, weenk are also given. It more frequently calls in flight than when perched.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black-crowned Tityra and Black-tailed Tityra.