Drab-breasted Bamboo Tyrant
Hemitriccus diops
The drab-breasted bamboo tyrant is about 11 cm (4.3 in) long and weighs 9.5 to 13.5 g (0.34 to 0.48 oz). The sexes have the same plumage. Adults have a plain dark olive-green crown. They have a white spot above the lores and a white eye-ring on an otherwise olive-green face. Their back and rump are plain dark olive-green. Their wings and tail are plain olive though sometimes the innermost secondaries have paler edges. Their throat and breast are mostly dull gray with a pinkish or purplish tinge; there is a faint white crescent between them. Voice: What may be either the song or a call of the drab-breasted bamboo tyrant is a "very high, upslurred, scratchy 'krrru', like a mini-rattle". Other vocalizations include " 'bit', 'sewit' or 'bit-biwít' ".
ID text from Wikipedia, CC BY-SA 4.0
Pearly-vented Tody-Tyrant
Hemitriccus margaritaceiventer
The pearly-vented tody-tyrant is about 10 to 11 cm (3.9 to 4.3 in) long and weighs 7 to 10 g (0.25 to 0.35 oz). The sexes have the same plumage. Adults of the nominate subspecies H. m. margaritaceiventer have a gray crown. Their lores and eye-ring are whitish on an otherwise grayish brown face. Their back and rump are drab grayish brown to brownish olive. Their wings are dusky with buff whitish to yellow edges on the flight feathers and tips of the coverts; the latter show as two wing bars. Their tail is dusky. Their throat and underparts are white with some faint grayish streaking. Voice: Though recordings of some subspecies are lacking, the pearly-vented tody-tyrant's vocalizations appear to be similar across its range. Its song has been described as a "modest, soft yet emphasized series...'tuc-tic-tuc-tuc-tuc-tuc' ". Other descriptions are "tip...tip...tiptrrtrrrrr", "tup tchup tchip ti-teeeeeerrrr", and "stick, tic-tic-ter'r'r'r'r'r'r'r'r'r'r".
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: Drab-breasted Bamboo Tyrant and Pearly-vented Tody-Tyrant.