422 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



Chestnut-headed Oropendola (Psarocolius wagleri) ; on August 22, 

 1954, it contained two fresh eggs. The tanagers entered the nest through 

 an opening just above the widest part of the bag. 



TANGARA PALMERI (Hellmayr): Gray-and-gold Tanager, 

 Tangaro Origris 



Calospiza palmeri Hellmayr, 1909, Rev. Prang. Ornith., 1, p. 49. (Sipi, Rio Sipi, 

 Choco, Colombia.) 



Small (although large for a Tangara); mostly gray, with black on 

 lores, around eye, on back, wings, band across breast; grayish blue- 

 green patch on back. 



Description. — Length 143-148 mm. Adult (sexes alike), lores, orbi- 

 tal region, and upper chin black; crown light gray; nape spotted black 

 and light gray; upper back light blue-green in center, black on edges; 

 lower back to upper tail coverts light gray, darkest on coverts; upper 

 and middle wing coverts light gray; greater coverts and remiges black, 

 with outer webs edged gray; tail black; throat white; two stripes across 

 breast, black and glossy cream-buff; sides and flanks light gray; rest of 

 undersurface white; underwing coverts white. 



Juvenile, back gray, with upper back colors of adult tinged buffy; 

 wings black, with middle and greater coverts edged white; tail black; 

 undersurface white. 



Measurements. — Males (7 from Darien and Colombia), wing 82.0- 

 84.8 (83.0), tail 53.3-58.0 (55.3), oilmen from base 11.8-13.9 (12.8, 

 average of 5), tarsus 18.7-19.8 (19.1) mm. 



Female ( 1 from Darien), wing 82.5, tail 50.2, culmen from base 12.6, 

 tarsus 19.1 mm. 



Resident. Rare and local, known in Panama only from eastern 

 Darien at Cana, Cerro Sapo, Cerro Quia, and Cerro Tacarcuna, where 

 it is found in humid forest and forest borders (Ridgely, 1976, p. 318). 

 It is also found in western Colombia and northwestern Ecuador. In 

 April 1922, Thomas Barbour and W. S. Brooks collected a group of 

 4, including 1 immature, in a single tree at Cerro Sapo, below 450 m; 

 no others were seen, and "they were quite new to the natives" (Bangs 

 and Barbour, Bull. Mus. Comp. Zool., vol. 65, 1922, p. 226). Ridgely 

 (in litt.) saw a pair at Cerro Quia (550 m) on July 18, 1975. He col- 

 lected 1 bird, which is now in the Gorgas Memorial Laboratory collec- 

 tion. The pair had been foraging independently from other birds, feed- 

 ing on Cecropia "catkins." E. A. Goldman collected 2 males at Cana on 

 June 10, 1912; 1 contained a wing of a beetle 2%, 9 seeds not deter- 

 mined 50%, 8 seeds of Bourreria 33%, 8 seeds of another undetermined 



