FAMIL . COEREB I D AE 



503 



vines, strips of banana leaves, moss and other plant material, and is 

 situated from 1.7 m off the ground to high in a tree. Both sexes work 

 on the construction of the nest, which takes 4 or 5 days to complete. 

 Bananaquits also build nests used only for sleeping; these are built and 

 occupied by a single individual, although sometimes a female will take 

 over her mate's dormitory to use as a breeding nest. 



Tn Panama the usual clutch is two eggs. They are dull white spotted 

 with brown; eggs of the Jamaican race, flaveola, average 17.2x12.8 

 mm. Incubation is performed solely by the female and requires 12 or 

 13 days. The nestlings are fed insects by both parents, and usually 

 leave the nest at 1 7 to 19 days of age, although some that left at 15 days 

 when Skutch disturbed their nest could fly fairly well. One female he 

 watched began her second clutch 14 days after the fledging of the first. 

 A pair that he watched on Barro Colorado Island, Canal Zone, (of the 

 race columbiana) laid three sets of eggs between January and June of 

 1935 and raised at least the first two broods. 



COEREBA FLAVEOLA CERINOCLUNIS Bangs 



Coereba cerinoclunis Bangs, 1901, Proc. New England Zool. Club, 2, p. 52. (San 

 Miguel [ = El Rey] Island, Gulf of Panama.) 



Characters. — Rump dark yellow; back and wings very blackish, 

 hardly contrasting with crown. 



Measurements. — Males (10 from the Pearl Islands), wing 52.2-60.2 

 (57.5), tail 32.4-38.8 (35.6), culmen from base 12.8-14.8 (13.9), tar- 

 sus 14.9-17.4 (16.5) mm. 



Females (10 from the Pearl Islands), wing 52.0-55.9 (53.6), tail 

 28.5-37.0 (31.7), culmen from base 12.5-13.7 (13.0, average of 9), 

 tarsus 14.3-17.2 (16.0) mm. 



Resident. Common in the Pearl Islands, where I have seen it on 

 San Jose, Pedro Gonzalez, Contadora, Chapera, Saboga, Rey (San 

 Miguel), Santelmo, Canas, Bayoneta, and the Isleta Malaga. I have 

 found it in coastal mangroves, woodland, and forest. On Contadora it 

 was the commonest small bird on the island. On January 24, 1960, I 

 noted that on Isla del Rey the males were displaying, and the next day 

 I collected some that were in breeding condition. On February 21, 

 1944, 1 found a partly constructed nest on San Jose. W. W. Brown, Jr., 

 (Thayer and Bangs, Bull. Mus. Comp. Zool., vol. 46, 1905, p. 57) col- 

 lected young in nestling plumage on Rey and Saboga islands from 

 February 28 to March 16, 1904. Many of the adults he took in Febru- 



