chondrohierax uncinatus Lakebomega, zoo, Dept. San Miguel, El Salvador Feb. 23, 1942 ♀ small #1295 (Complete skeleton) This bird was taken from about 40' up in a large tree about 20 yds. from the Rio San Miguel, it was perched quietly, and never made any sound. Looked for the other member of the pair without success. Measurements in mm. in the flesh:- Wing 292 Tail 215 Tarsus 36 Culmen including cere 31 Bill from anterior edge of cere 20 Depth of bill at anterior edge of cere 18 Total length 454 Middle toe + claw 48 Wingspread 941 Color of soft parts: Beak white. Mandible pale greenish ivory, darker at tip. Anterior portion of cere and gape greenish yellow. Posterior portion of cere black green. Gyring & bristled loreal streak bluish green. Supra-loreal skin yellow. Tarsi + feet orange. Maxilla + claws, black. Head, scapulars, back, and upper tail coverts black, the head feathers with concealed white bases. Nuchal collar light rufous. Remiges dark slaty brown