Green-bellied Hummingbird
Saucerottia viridigaster
The green-bellied hummingbird is 8 to 10.5 cm (3.1 to 4.1 in) long and weighs 4.5 to 6.7 g (0.16 to 0.24 oz). Both sexes of both subspecies have a straight, medium length, blackish bill with a pink to reddish base to the mandible. Adult males of the nominate subspecies have a dull golden-green head and back and olive green to brownish rump and uppertail coverts; the last sometimes have a purplish tinge. Their wings are dark purple brown and their tail deep blue to violet blue. Their underparts are a dark shining green becoming grayish brown at the vent. Voice: The green-bellied hummingbird's song has been variously described as " a short dainty phrase which is repeated several times...tee-tee-dji-dji or tee-dji-tee-dji" and also as "a waif-like ta-da titi-da". Calls include a "short high-pitched buzzy note...tzree..tzree..tzree..." and a "fast stuttered descending series...TSEe-tsee-tsi-tsi-ti-ti".
ID text from Wikipedia, CC BY-SA 4.0
Indigo-capped Hummingbird
Saucerottia cyanifrons
The indigo-capped hummingbird is 7 to 10 cm (2.8 to 3.9 in) long and weighs about 5 g (0.18 oz). Both sexes have a black bill with a red base to the mandible. The adult male has an indigo-blue crown, shining green upperparts with a bronze to coppery gloss on the rump, and bronze to bluish black uppertail coverts. Its tail is deep steel blue. Its underparts are glittering golden green with undertail coverts that vary from bronze-green to dark bluish with whitish edges. The adult female's crown is turquoise-blue towards the rear and its throat feathers have a grayish bar near the end. Voice: The indigo-capped hummingbird's song is "a repeated buzzy, squeaky phrase 'tzuk-keee ... tsrp'." It also makes "a high, sharp 'tsit'" call, sometimes in a series.
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: Green-bellied Hummingbird and Indigo-capped Hummingbird.