Description
English: « Tachyphonus nitidissimus » = Tachyphonus luctuosus nitidissimus (Subspecies of White-shouldered Tanager) - male and female
Français: « Tachyphonus nitidissimus » = Tachyphonus luctuosus nitidissimus (Sous-espèce de Tangara à épaulettes blanches) - mâle et femelle
Date 1902
Source Biologia Centrali-Americana http://archive.org/stream/mobotbca_03_04_00#page/n55/mode/2up
Author John Gerrard Keulemans (1842–1912) https://en.wikipedia.org/wiki/John_Gerrard_Keulemans
Source: https://commons.wikimedia.org/wiki/File:Tachyphonus_luctuosus_nitidissimus_1902.jpg

The white-shouldered tanager (Tachyphonus luctuosus) is a medium-sized passerine bird. This tanager is a resident breeder from Honduras to Panama, South America south to Ecuador and southern Brazil, and on Trinidad. White-shouldered tanagers are 14 cm long and weigh 14 g. They are long-tailed and with a mostly black stout pointed bill. The adult male is glossy black, apart from white underwing coverts and a conspicuous white shoulder patch. The shoulder patch is the most obvious difference from the similar but larger white-lined tanager, in which the smaller white area is rarely visible except in flight. Order: Passeriformes, Family: Thraupidae, Genus: Tachyphonus, Species: Tachyphonus luctuosus ((d’Orbigny and Lafresnaye), 1837).