The Sparkling Violetear is a South American hummingbird that is widespread in highlands of northern and western South America, including a large part of the Andes, the Venezuelan Coastal Range, and the Tepuis.
The Scale-throated Hermit is a South American hummingbird found in the Atlantic forest in north-eastern Argentina, south-eastern Brazil, and eastern Paraguay.
The Purple-backed Thornbill is a small hummingbird with an extremely short, straight bill and a fairly long, notched tail. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.
The Sapphire-spangled Emerald is a small hummingbird that occurs in Venezuela, Peru, Bolivia and Brazil from the Amazon south to Santa Catarina (there are uncertain records from east Ecuador).