354 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



under primary coverts sometimes spotted or barred with white. Bill 

 black, bluish basally; cere and feet yellow; iris brown. 



Juvenal (sexes alike). — White-bellied phase: Similar to the adult, 

 but with the dark upperparts mLxed and streaked with whitish or 

 pale ochraceous-buff on the occiput and nape; scapulars with paler 

 brown edges, the margins becoming ochraceous on some feathers; 

 outer surface of primaries uniform fuscous; tail more narrov;ly banded 

 than in adult — dull grayish brown, with indications, especially at the 

 shaft, of about seven narrow dusky bands, the last of which is much 

 broader than the rest. (These bands scarcely show at all when the 

 tail is closed, except on the middle rectrices.) Tip of tail narrowly 

 and indistinctly pale brownish gray. Forehead and anterior portion 

 of lores immaculate white; sides of head, including superciliary and 

 supra-auricular regions, suborbital region and auriculars, streaked 

 with white and dusky, in nearly equal proportion; sides of neck simi- 

 larly but more broadly streaked, and slightly mixed on the lower 

 portion with rustv ochraceous. Entire lower parts, from chin to 

 crissum, including the whole lining of the wing, axillars, and greater 

 extent of under surface of remiges (in closed wing), immaculate white, 

 the upper portion of outer side and whole of inner side of tibiae deep 

 creamj^ buff, or light ochraceous. Tail slightly emarginate when closed, 

 truncate when spread; third and fourth quills longest, the others suc- 

 ceeding in the following order: fifth, second, sixth, seventh, eighth, 

 first, ninth, tenth, the first and eighth being very nearly equal, how- 

 ever. Only three outer primaries with inner webs distinctly emargi- 

 nated, but fourth showing an appreciable sinuation. 



Juvenal (sexes alike). — Melanistic phase: Very similar to the 

 adult, but tail dull brown with more numerous, narrower, and much 

 less distinct bars of dusky, usually eight or nine in number. Contour 

 feathers (both above and below) with much concealed white on the 

 basal portion of the feathers, the lower parts sometimes slightly varied 

 with white or ochraceous spots and streaks, the axillars and under 

 wing coverts with small round spots of the same, and the under tail 

 coverts spotted with ochraceous. 



Natal down. — White (none examined). 



Adult male.— Wing 290-298; tail 160.3-162.2; culmen from cere 

 18.2-19.5; tarsus 58.5, 58.5; middle toe without claw 34.6-35.3 mm." 



Adult female.— ^Y'mg 300-323 (315.0); tail 163.5-190.5 (179.9); 

 culmen from cere 20.5-21 (20.7); tarsus 59-61.9 (60.6); middle toe 

 without claw 37.5-40.6 (38.9 mm.).^^ 



Range. — Resident locally in peninsular Florida: St. Marks and San 

 Mateo south to Chatham Bay, Fort Myers, Miami, and Cape Sable; 



"^ Two specimens, one from Florida, one from Mexico. 



^^ Five specimens, three from Florida, one from Mexico, one from Nicaragua. 



