Woodnymph
Woodnymphs are hummingbirds in the genus Thalurania. Males are green and violet-blue, while females are green with white-tipped tails and at least partially whitish underparts. Both sexes have an almost straight, entirely black bill and little or no white post-ocular spot. They are found in forest (primarily humid) and tall second growth. The species in this genus are almost entirely allo- or parapatric, and a species is present virtually everywhere in the tropical humid Neotropics. Species. The genus contains four species: In 2009 an additional species was described as the black-capped woodnymph ("T. nigricapilla"). It  is reportedly restricted to Valle del Cauca in Colombia and lacks iridescence to its crown, but at present no official authority (beyond the describers themselves) recognize it as valid. This genus formerly included the Mexican woodnymph. A molecular phylogenetic study published in 2014 found that "Thalurania" was non-monophyletic and that the Mexican woodnymph is closely related to species in the genus "Eupherusa". Based on this result the Mexican woodnymph is now placed in "Eupherusa".