404 BIRDS OF THE REPUBLIC OF PANAMA PART 4 



toe berries, but Leek (Living Bird, 1971, p. 96-97) observed it at Barro 

 Colorado Island feeding regularly on the fruit of Pothomorphe, Piper 

 marginatum, Piper leptocladum, all in the pepper family, and Lantana. 

 A male collected by Strauch (Bull. Brit. Orn. Club, 1977, p. 64) 

 weighed 10.1 gram. As they move about, these birds give a chattering 

 treah-treah call. 



Ridgely (in lift.) found a nest under construction on December 31, 

 1974, in the Bayano River Valley, just upstream from Maje, Province 

 of Panama. Both members of the pair were bringing in fibrous ma- 

 terial to a chamber in the thickest part of a large piece of hanging moss 

 of some kind, situated some 12 m above the ground. Both birds con- 

 tinued to bring in material during the heat of the day. I have no infor- 

 mation on the eggs or young. 



EUPHONIA GOULDI PRAETERMISSA (Peters): Olive-backed 

 Euphonia, Tanagra Espaldioliva 



Tanagra gouldi praetermissa Peters, 1929, Bull. Mus. Comp. Zool., 69, p. 470. 

 (Western River, Almirante, Panama.) 



Very small; male glossy green on upper surface with yellow fore- 

 crown; undersurface yellowish green with reddish brown and yellow 

 on center of belly; female like male on upper surface, but yellow patch 

 replaced by brown; undersurface greenish yellow with reddish brown 

 undertail coverts. 



Description. — Length 79-90 mm. Adult male, forecrown yellow; 

 rest of upper surface, including wing coverts, glossy olive-green; re- 

 miges and rectrices dusky blackish, with outer webs edged yellowish 

 green; throat, breast, and sides yellowish green; center of belly to un- 

 dertail coverts reddish brown; sides of belly flecked yellow and green; 

 underwing coverts white. 



Adult female, forecrown very dark brown; rest of upper surface 

 like male; undersurface light greenish yellow, darker on sides, to under- 

 tail coverts, which are reddish brown; underwing coverts white. 



Measurements. — Males (8 from Panama and Costa Rica), wing 

 52.5-57.0 (54.7), tail 21.7-28.0 (25.6), culmen from base 9.0-10.7 

 (10.0), tarsus 13.2-14.8 (14.1) mm. 



Females (7 from Panama, Costa Rica, and Guatemala), wing 49.9- 

 56.8 (53.2), tail 23.1-28.5 (26.0), culmen from base 9.5-10.7 (9.8), 

 tarsus 14.0-16.4 (15.0) mm. 



Resident. Common on the Caribbean slope in the lowlands of Bocas 

 del Toro; reported also from the Caribbean lowlands of western Vera- 

 guas. H. von Wedel collected several in Bocas del Toro during 1928 



