Ecuadorian Thrush
Turdus maculirostris
The Ecuadorian thrush is 21.5 to 23 cm (8.5 to 9.1 in) long and weighs 62 to 76 g (2.2 to 2.7 oz). The sexes have the same plumage. Adults have an olive-brown head with a faint yellow eye-ring. Their upperparts, wings, and tail are olive-brown. Their throat is white with dark streaks. Their breast and flanks are a paler olive-brown than their upperparts and their belly and vent are whitish. They have a dark iris, a dusky yellow bill, and olive-brownish legs and feet. Voice: The Ecuadorian thrush's song is "a musical caroling". Its principle call is "a distinctive cat-like and querulous queeoww" and it also makes a "chuk" call.
ID text from Wikipedia, CC BY-SA 4.0
Glossy-black Thrush
Turdus serranus
The glossy-black thrush is 23 to 25 cm (9.1 to 9.8 in) long and weighs 70 to 90 g (2.5 to 3.2 oz). The species is sexually dimorphic. Adult males of the nominate subspecies T. s. serranus are almost entirely glossy black with a yellow eye-ring and a yellow bill. Adult females have a dark olive-brown head and upperparts, slightly paler and redder underparts, a brownish bill, and no eye-ring. Both sexes have yellow legs and feet. Juvenile males have dark sooty brown upperparts and juvenile females have warm brown upperparts, both with buff spots and streaks. Voice: The glossy-black thrush sings mostly before dawn, usually from an exposed perch in the forest canopy. Its song is unmusical, "a rapidly mumbled te-do-de-de-do-deet, all notes run together, rather shrill, gradually rising throughout, and monotonously repeated at short intervals". Another author similarly describes it as "uninspired, a short and tirelessly repeated phrase that rises toward end, e.g.
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: Ecuadorian Thrush and Glossy-black Thrush.