Flame-rumped Sapphire
Encyclopedia
The Flame-rumped Sapphire (Hylocharis pyropygia) is a doubtfully valid species of hummingbird
Hummingbird
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5–13 cm range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings...

 in the Trochilidae family known only from Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

. Today few authorities accept it as valid, instead believing it represents a hybrid between Chlorostilbon aureoventris and Hylocharis cyanus.
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