Buff-bellied Hummingbird
Amazilia yucatanensis
The buff-bellied hummingbird is 10 to 11 cm (3.9 to 4.3 in) long and weighs 2.9 to 4.7 g (0.10 to 0.17 oz). Adult males have a rosy reddish bill that is dusky at the end; females' have more dark on the maxilla. Adult males of the nominate subspecies have metallic bronze green upperparts that are duller and darker on the crown. Their uppertail coverts are a mix of bronze green and cinnamon rufous. Their tail feathers are chestnut at the base and metallic bronze at the end. Voice: The buff-bellied hummingbird's vocalizations have been well studied only in Texas. Displaying individuals make a two-syllable "tsi-we" call. During feeding it makes "tik" or "tik-k" notes. When chasing other hummingbirds it gives a "long, low call with notes repeated rapidly (see-see-see-see-su-su)"; this vocalization has also been described as the species' song.
ID text from Wikipedia, CC BY-SA 4.0
Cinnamon Hummingbird
Amazilia rutila
The cinnamon hummingbird is 9.5 to 11.5 cm (3.7 to 4.5 in) long and on average weighs about 5 to 5.5 g (0.18 to 0.19 oz). Adults of the nominate subspecies A. r. rutila have metallic bronze green upperparts and cinnamon to cinnamon rufous underparts that are paler on the chin and upper throat. The tail is deep cinnamon rufous to rufous chestnut; the feathers have dark metallic bronze tips and the outermost have dark metallic bronze outer edges. The wings are a dark brownish slate. Males' bills are red with a black tip and females' mostly black with red at the base.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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