FAMILY CAPITONIDAE 499 



away, seeking the inner twigs next the main trunk. Here they waited 

 perfectly silent and motionless. . . . Finally at no discernible stim- 

 ulus, one would fly quite openly to the post and enter it at once. . . . 

 Eventually it would fly out, carrying droppings from the nest. Return- 

 ing to the bush 20 feet away, it would relinquish the droppings, and 

 then disappear into the forest." The young in the nest called con- 

 stantly with squeaky notes to their parents. Worth remarked that 

 the latter were silent, and that he never heard one utter a sound, 

 which agrees with my own observations. Slud in his work in Costa 

 Rica also noted that in his experience these birds were always silent. 

 Beyond Panama the race sahnni ranges on the Caribbean slope to 

 central Costa Rica, and is found less commonly on the Pacific side. 



EUBUCCO BOURCIERII ANOMALUS Griscom 



Eubucco bourcieri anomalus Griscom, Bull. Mus. Comp. Zool., vol. 69, no. 8, 

 April 1929, p. 163. (Cana, Cerro Pirre, Darien, Panama.) 



Characters. — Streaking on under surface averaging slightly nar- 

 rower ; very slightly smaller in size ; male with breast more yellow, 

 less orange ; female, with the side of the head lighter blue, like E. b. 

 salvini; throat duller, greener, like E. b. occidentalis of northwestern 

 Colombia. 



A male, taken on Cerro Mali, Darien, February 26, 1964, had the 

 iris dark red ; bill greenish yellow ; tarsus and toes olive-green ; claws 

 greenish neutral gray. 



Measurements. — Males (7 from Darien), wing 67.0-69.6 (68.1), 

 tail 43.8-46.8 (44.9), oilmen from base 17.5-18.9 (18.6), tarsus 

 19.0-20.8 (19.9) mm. 



Females (5 from Darien), wing 65.2-68.7 (66.6), tail 43.5-46.4 

 (45.0), culmen from base 18.1-18.8 (18.6), tarsus 19.8-20.5 (20.1) 

 mm. 



Resident. Rather rare on Cerro Pirre, and on the slopes of Cerro 

 Tacarcuna, Darien, from 550 to 1,450 meters. 



My only view of this bird in life was in the undergrowth in open 

 forest beside our camp clearing on Cerro Mali. Dr. Galindo collected 

 a male June 1, 1963, where that ridge joined the slopes of Cerro 

 Tacarcuna proper, and an immature male fully grown at 575 meters 

 on the upper Rio Tacarcuna, in July 1963. E. A. Goldman secured 

 5, all immature, at Can?., on Cerro Pirre from June 6 to 11, 1912. 



In the stomachs of those taken by Goldman 2 were filled with 

 fragments of 2 or more kinds of berry seeds. Another held a small 

 scorpion entire, bits of a spider, parts of a beetle and a caterpillar, 



