46 DircHor' s Annual Rcpori . 



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

 bod}- 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 which is light. The adult female (type of Halcyon 

 rufi^iilaris. 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 no.strils is about .57. //ad. I.sland of Guam. 



Order MACK0CHIR1:S.-Swifts, Goatsuckers, Etc. 



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

 Family Cypsdidcc . 



b". vShafts of the rec5lrices ordinary and without spinous 

 points. Genus Collocalia , Gray. 



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



HniDidd Tciiiii-oivi/iis, yuoy & Gaiin., Voy. A.strolabe, Zool.. 1S30, I., p. 206. 



Collocalia funphaira. Cat. B. Brit. M\i.s.,' XVI., p. 499; Ou.st.,' I., p. 187; Hartt-rt, Nov. Zool. 



v., p. .53. 



The.se birds are quite common, especially over the grassy hills, 

 where they could be coiLstantly seen hawking about for insedls. 

 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 sooty brown with a slight glo.ss ; 

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

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



