46 Dircflor s Annual Report. 



tail feathers blue ; head, hind neck and entire under surface of 

 body a uniform cinnamon ; ear coverts are long tufts of dusky 

 feathers with a tint of greenish blue ; a dusky band extending from 

 ear coverts entirely around the back of the head, forming a nuchal 

 band ; eye dark hazel ; bill a dark horn, except posterior third of 

 lower mandible w^hich is light. The adult female (type oi Halcyon 

 ruli^idaris, Sharp) is similarly colored, but has only the throat, 

 head, chest and thighs, cinnamon ; the breast, belly, sides of body, 

 under wing coverts and under tail coverts white. In some speci- 

 mens there is a slight mixture of cinnamon on the upper tail coverts, 

 and also a faint buffy tint on the sides. The cinnamon color of the 

 females is not quite so bright as on the males. The measurements 

 of the specimens taken were as follows: — 



The extent of the wing is about 14.50 ; the depth of the bill at 

 the nostrils is about .57. Hab. Island of Guam. 



Order MACROCHIRES.-Swifts, Goatsuckers, Htc. 



a'. Tarsi and toes naked, tail slightly forked, color dusky. 

 Family Cypselidce . 



b'. Shafts of the recflrices ordinary and without spinous 

 points. Genvis Collocalia, Gray. 



47. Collocalia fuciphaga (Thunb.). Jajaguag. Swift. 



Hii'iiHdi) 7'aiiikni fiisis, yuoy &. Gaiiii., Voy. Astrolabe, Zool., 1S30, I., p. 206. 



ColUnalia funpha^a , Cat. B. Brit. Mus.^ XVI., p. 499; Ou.st.. I., p. 1S7 ; Hartert, Nov. Zool., 

 v., p. 53- 



These birds are quite common, especially over the grassy hills, 

 where they could be coiLStantly .seen hawking about for inse(5ls. 

 I never have seen them alight. Many caves on the island were 

 .searched in the hope of finding the nests and eggs, but I was un- 

 successful, although the birds doubtless ne.st on the island in large 

 numbers. The upper surface is a soot}' brown with a slight gloss ; 

 the head is tiniform with the coloring of the mantle, with a little 

 deeper gloss ; the wings and tail are darker ; the under surface is 



