Black-billed Thrush
Turdus ignobilis
The black-billed thrush is 18.5 to 24 cm (7.3 to 9.4 in) long and weighs 48 to 81 g (1.7 to 2.9 oz). The sexes have the same plumage. Adults of the nominate subspecies T. i. ignobilis have an olive-brown head and upperparts with a slightly darker face and an off-white throat with dark streaks. Their breast and flanks are a paler olive-brown and their belly and undertail coverts are whitish. They have a black iris, a black bill, and dark gray-brown to black legs and feet. Subspecies T. i. goodfellowi has warmer and darker olive-brown upperparts than the nominate. T. i. Voice: The black-billed thrush's song in Venezuela is "a rather slow caroling churre, churre, ee, TE-O-we, churre... and so on with pleasing, relaxed phrases; some individuals sing very repetitive phrases". It calls there are "a loud pfeea! or wEEa!". Similarly, in Peru it is described as "a pleasant and musical caroling, often with a particular phrase given twice".
ID text from Wikipedia, CC BY-SA 4.0
Ring Ouzel
Turdus torquatus
The ring ouzel is 23–24 centimetres (9.1–9.4 in) in length and weighs 90–138 grams (3.2–4.9 oz). The plumage of the male of the nominate race is entirely black except for a conspicuous white crescent on the breast, narrow greyish scaling on the upperparts and belly and pale edges to the wing feathers. The bill is yellow and the legs are greyish brown. The female resembles the male but is browner and with a duller breast band. Juveniles are like the female, but with a faint or non-existent breast crescent. Voice: The male ring ouzel sings from a low perch or occasionally in flight. The song consists of a repetition of 2–4 plaintive fluty notes, tri-ríí, tri-ríí, ti-ríí with pauses between repeats. The call is a loud tac-tac-tac, becoming harsher if the bird is alarmed. The contact call is a soft cherrr in flight. Males sing most frequently at dawn and sunset.
ID text from Wikipedia, CC BY-SA 4.0
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