Penelope bridgesi Gray, 1860

Evangelista-Vargas, Oscar Diego & Silveira, Luís Fábio, 2018, Morphological evidence for the taxonomic status of the Bridge’s Guan, Penelope bridgesi, with comments on the validity of P. obscura bronzina (Aves: Cracidae), Zoologia (e 12993) 35, pp. 1-10 : 9

Penelope bridgesi Gray, 1860

Holotype. BMNH 1846.9 .9.42 (sex unknown, Bolivia; examined).

Common name. Spanish: Pava de Bridge. English: Bridge’s Guan.

Diagnosis. Distinguished from all members of Penelope by having chestnut-olive brown coloration without green tinge, and overall coloration browner than P. obscura . Underparts are uniform and slightly paler than the back, unlike P. obscura . Wing coverts with contrasting large white margins. Black head and hindneck contrast with brownish back, being distinct of P. obscura .

Re-description. No sexual dimorphism found in plumage coloration. General coloration chestnut, with limited individual variation. Crest feathers dark with whitish margins, most strongly marked on the forehead; little or no trace of an superciliary stripe. Upperparts chestnut, contrasting with the black head and hindneck. Lower parts uniform dull reddish brown and slightly paler than the back. The belly feathers have contrasting horizontal scaling, which may range from brown to orangish and may vary in intensity. Feathers of the neck, mantle and chest are margined with white, wider on the mantle and wing coverts. Tail feathers dark brown with brownish sheen. Bare skin of face slaty, legs dusky gray to blackish, and wattle red.

Distribution. Forests of the eastern slopes of the Andes, from central Bolivia (Cochabamba, Chuquisaca and Tarija) to northwest Argentina (Jujuy, Salta, Tucumán and Catamarca). Found in the biogeographic provinces of the Yungas and the Chaco.

Examined material (n = 20). ARGENTINA, Jujuy: Cerro Calilegua (1 ♂ - ZSM 21118 ); Valle Grande, Ledesma (1 ♀ - ZSM 59536 ); Salta: Río Santa María (1 – MACN 30575 ); Salta (1 ♀ - BMNH 1899.1.27.214); Tucumán: Vipos (1 ♀ - MACN 8148 a); Tafí Viejo (1 ♂ - MACN 8884 ); Sierra del Aconquija (1 ♀ - MACN 42153 , 4 ♂ - MACN 42156 , MACN 42157 , MACN 42158 , MACN 42159 , 1 – MACN 42160 ); Aconquija (1 ♀ - MACN 32840 ); Catamarca: El Suncho (1 ♂ - MACN 42154 , 1 ♀ - MACN 42155 ). BOLIVIA: Penelope bridgesi HOLOTYPE ( BMNH 1846.9.9.42); Cochabamba: Tin-Tin (1 ♂ - FMNH 413837 ); Tarija: Villa Montes (2 – ZSM 27977 , ZSM 27978 , 1 ♀ - MFN 313633 ).