Green-bellied Hummingbird

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".