402 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



l)ill black, the tumid rictal portion pale brownish (tiesh color in life?); 

 legs and feet dusky horn color (in dried skins). 



Youn(j.—Ahoye brownish gray or deep drab-gra}^ the primaries 

 and rectriccs marked with wdiit(> and (together with secondaries) edged 

 wdth paler gray as in adults; lower riniip olive-bellow, much less dis- 

 tinct and more restricted than the pure ^^ellow patch of adults; sides of 

 head brownish gray, without any white superciliary stripe or else with 

 this merely indicated; malar region paler grayish or dull grayish 

 white, faintly tinged with yellow; chin, throat, and upper chest dull 

 yellowish white; rest of under parts similar, the lower chest, breast, 

 and upper al)domen more distinctly yellowish, the sides and flanks 

 strongly tinged with In-ownish gray; bill and feet as in adults, ))ut the 

 former rather more l)rownish. 



Aduh ruale.--hength (skim), 109.7-127.8 (117.»>); wing, «)1. 2-68.3 

 (65); tail, 39.1-48.8 (45); exposed culmen, 14.5-16.8 (15.2); tarsus, 

 18.5-20.8 (20.1); middle toe, 11.4-13.2 (12.4).' 



Adult female.— hangth (skins), 93-120.4 (108.2); wing, 56.6-62 

 (59.7); tail, 37.6-43.2 (40.1); exposed culmen, 13-15 (13.7); tarsus, 

 17.5-20.3 (18.8); middle toe, 11.2-13 (11.9).' 



^ Twenty specimens. 

 ^ Twelve specimens. 

 Average measurements of specimens from different islands are as follows: 



In addition to these specimens with sex determined many nnsexed exami)les have 

 been examined. Nevertheless, the different islands are much too inadequately repre- 

 sented to show conclusively whether there are constant local differences or not. The 

 specimens from Highburna Key and New Providence seem to be lighter and duller 

 colored above than others, but to what extent this is due to difference of season I am 

 unable to determine. 



