Black-streaked Puffbird
Malacoptila fulvogularis
The black-streaked puffbird is 19 to 22 cm (7.5 to 8.7 in) long and weighs about 65 g (2.3 oz). Its head is blackish with thin white streaks and a white spot in front of the eye. Its upperparts are dark brown with thin white streaks on the shoulder becoming buffy triangles on the back. The wings are brown with buffy scallops on the coverts and the tail is solid brown. The throat and upper breast are ochraceous; the lower breast, upper belly, and flanks are striped black and white; and the center of the belly is unmarked dingy whitish. Voice: The black-streaked puffbird's song is "a very high-pitched ascending whistle, lasting under 4 seconds."
ID text from Wikipedia, CC BY-SA 4.0
White-whiskered Puffbird
Malacoptila panamensis
The white-whiskered puffbird is about 18 cm (7.1 in) long with an average weight of about 43 g (1.5 oz). Unlike most puffbirds, the male and female have different plumages. Both sexes have bristles around the base of the large bill, and white "whiskers", which are actually tufts of feathers. The nominate adult male's upperparts are brown to chestnut brown. The forecrown has narrow buff or tawny streaks and most of the rest of the upperparts have buff or tawny spots. The tail is chesnut brown. Its lores, supercilium, cheeks, and the sides of the neck are tawny. Voice: The white-whiskered puffbird's song is "a high-pitched descending trill ... usually with an emphasized note at the end, e.g., tssiirrrrr-tsít." It sings less often than many other puffbirds. A frequently heard call is "a high, thin, slightly reedy, drawn-out tsssiiiw or tssssiiir, fading away".
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-streaked Puffbird and White-whiskered Puffbird.