34 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
saw one immature bird with dark head but fully grown. In the 
mountains one or two were constantly in sight. over the meadows. 
Family ACCIPITRIDAE 
ACCIPITER STRIATUS VELOX (Wilson): Sharp-shinned Hawk 
Falco velog Witson, American ornithology, vol. 5, 1812, p. 116, pl. 45, fig. 1 
(Philadelphia, Pa.). 
A female sharp-shin was taken near Liberia on October 28, and 
another bird was seen at the Hacienda Santa Maria on November 8. 
Carriker in his ‘‘ Birds of Costa Rica” records it only from the plateau 
region. 
BUTEO PLATYPTERUS PLATYPTERUS (Vieillot): Broad-winged Hawk 
Sparvius platypterus VimiuuotT, Tableau Encycl. Méth., vol. 3, 1823, p. 1273 
(Philadelphia, Pa.). | 
Near Liberia on October 24 I shot a male and saw another of these 
hawks on November 18. At the Hacienda Santa Maria I killed one 
on November 12 and gave it to Aguilar. The birds were found at the 
edge of forest and were quite fat. 
BUTEO MAGNIROSTRIS ARGUTUS (Peters and Griscom) 
Rupornis magnirostris arguta PretErs and Griscom, Proc. New England Zodl. 
Club, vol. 11, Aug. 30, 1929, p. 46 (Almirante, Panamé4). 
These small hawks were common near Liberia where I prepared a 
male as a specimen on October 19. On the Hacienda Santa Maria 
they were found through the groves bordering the pastures and along 
the edge of the forest. The species is one that does not range in 
heavily forested areas. As always, these birds were tame, coming 
quickly to me at any imitation of a wounded or excited bird and calling 
querulously as I passed through their haunts. The specimen taken is 
from near the northern limits of this race in northwestern Costa Rica. 
BUTEO NITIDA MICRUS (Miller and Griscom) 
Asturina nitida micrus MILLER and Griscom, Amer. Mus. Nov., No. 25, Dee. 9, 
1921, p. 4 (4 miles northeast of Chinandega, Nicaragua). 
On October 19 along the Rio Liberia below Liberia one of these 
hawks came dashing in as I imitated the cry of a small bird in pain and 
alighted a few feet overhead, sending an iguana that had been resting 
there scurrying through the branches to a more secure spot. Another 
was seen here on October 22. The specimen taken, a female, has the 
wing 264 mm., agreeing in size and color with micrus from farther 
north and showing no approach to the smaller B. n. costaricensis of 
southwestern Costa Rica. 
