Indigo-capped Hummingbird

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.