Plain-tailed Nighthawk (Nyctiprogne vielliardi) [XC763254]
by id from Janu\u00e1ria, Minas Gerais, Brazil (song)
Plain-tailed Nighthawk (Nyctiprogne vielliardi) [XC66640]
by Mateus Gon\u00e7alves Santos from Pirapora, MG. Rio das Velhas, Brazil (song)
Subspecies
Only recently described. Further study required, as species possibly more closely related to genus Nyctiprogne than to Chordeiles. Sympatric with Least Nighthawk (Chordeiles pusillus) in north-eastern Brazil.