Long-tailed Woodnymph Thalurania watertonii Scientific name definitions

The Long-tailed Woodnymph (Thalurania watertonii) is endemic to the littoral of northeast Brazil, where it is definitely known from the states of Pernambuco and Alagoas, although a much wider range has frequently been accorded to the species in the past (even encompassing Guyana, where the holotype was long assumed to have come from). Although the species remains reasonably common, it is presumably still declining due to ongoing habitat loss, and as a result has been listed as Endangered; however, recently published research suggests that its conservation status may be less perilous than this.

Thalurania watertonii is largely restricted to the lowlands, including plantations and parks, but is also found in the highland forests of its range. Like other woodnymphs, this species forages in the understory and middle strata, usually on the periphery of vegetation, taking nectar from a fairly wide variety of plant species and occasionally invertebrates. Males defend their territories against conspecifics and other hummingbirds, with breeding documented principally between October and March, a period appears to be the main breeding season for many birds in this region of Brazil.