Berylline Hummingbird
Saucerottia beryllina
The berylline hummingbird is 8 to 10 cm (3.1 to 3.9 in) long. Males weigh about 4.4 g (0.16 oz) and females about 4.0 g (0.14 oz). The bills of males of all subspecies have a black maxilla and a pinkish mandible with a black outer half. Adult males of the nominate subspecies S. b. beryllina have a bronze-green to coppery head, back and rump. Their uppertail coverts and tail are coppery to rufous. The bases of their primaries and secondaries are chestnut and show as a patch on the closed wing. Their underparts are glittering golden green. Voice: The berylline hummingbird's song is somewhat variable, "slightly gruff, high-pitched twittering notes lisping introductory notes...rendered 'ssi kirr-i-rr kirr-i-rr', 'sirrr, ki-ti ki-dik' or 'sssi-ir sssiir chit-chit chit-chit-chit...'." It also makes calls that are described as "a hard, buzzy 'dzzzzir' or 'drrzzzt', and a more liquid 'dzzzzrrt' that may be repeated several times".
ID text from Wikipedia, CC BY-SA 4.0
Blue-vented Hummingbird
Saucerottia hoffmanni
The blue-vented hummingbird is 8 to 11 cm (3.1 to 4.3 in) long and weighs an average of 4.45 g (0.16 oz). Both sexes have a straight bill with a blackish maxilla and a coral-red mandible with a dark tip. Adult males have golden-green upperparts with coppery to purplish rump and uppertail coverts. Their underparts are dark glittering golden-green with greenish to steel blue undertail coverts. Their tail is pale steel blue and slightly forked. Adult females are similar but with a duller green lower breast and belly. Voice: The blue-vented hummingbird's song is "a repeated buzzy, squeaky phrase tzi-tzee-tzup, sometimes followed by a few lower-pitched notes, tzi-tzee-tzup ... wut-chur-up." It also makes calls described as "a high, sharp tsit or dry chit, sometimes uttered in sputtering series."
ID text from Wikipedia, CC BY-SA 4.0
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