Chestnut-capped Puffbird
Bucco macrodactylus
The chestnut-capped puffbird is 14 to 16.5 cm (5.5 to 6.5 in) long and weighs about 25 g (0.88 oz). Its plumage is unique among puffbirds. Its crown is chestnut, its nape a bright reddish orange, and the rest of the upperparts brown with a few lighter bars on the back and many on the rump. The tail is long, narrow, and warm dark brown. It has a thin white supercilium, black cheeks and lower throat with a white line between them, and a reddish white chin and upper throat. The chin feathers curl up over the base of the bill. Voice: The chestnut-capped puffbird's song is "a series of plaintive but abrupt rising notes ending in twitter, 'pup pup pep pep peep peep pip pip pip piz'".
ID text from Wikipedia, CC BY-SA 4.0
Spotted Puffbird
Bucco tamatia
The spotted puffbird is about 18 cm (7.1 in) long and weighs 33 to 42 g (1.2 to 1.5 oz). The nominate subspecies has a pale rufous forehead that becomes rufous spots on a dark brown background on the crown. Below that is a blackish band through the eye, below that a white stripe, and below that a black patch. The white stripe continues around the nape. The upperparts and wings are dark brown with some buffy scallops and the tail is dark brown with some buffy edges to the feathers.
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: Chestnut-capped Puffbird and Spotted Puffbird.