42 PROCEEDINGS OF THE NATIONAL MUSEUM Seth, OF 
across into the mountains of the Nicoya Peninsula. As they pass. 
near at hand their colors flash and the long tail feathers undulate in 
the wind. In distant flight they travel high in a direct line with 
steadily moving wing beat when the long, streaming tail gives them a 
curious outline. As I left the hacienda early on the morning of 
November 16 a flock of 40 or 50, a brilliant group, came circling low 
over my head, a farewell to please the heart of any naturalist. 
Although Ara ambigua ambigua is recorded only from eastern 
Costa Rica it is certain that it occurs on Rincon de la Vieja. A lapa 
verde, or green macaw, was well known there, and one came with the 
red ones to the house occasionally. I did not see it personally, but 
it was reported to me so that I was certain of its presence. High 
on the mountain I heard macaw notes that seemed somewhat different 
from those ordinarily heard from Ara macao. I thought that they 
came from the green birds, but among the steep slopes and the great 
trees I did not succeed in approaching the birds responsible for these 
calls. 
PYRILIA HAEMATOTIS HAEMATOTIS (Sclater and Salvin) 
Pionus haematotis haematotis ScuATER and Satvin, Proc. Zool. Soc. London, 
Aug. 1860, p. 300 (Vera Paz, Guatemala). 
Soon after daylight on November 12 Carlos Aguilar called me to see 
some small parrots in the coffee plantation at the Hacienda Santa 
Maria. Among the dim, shadowed branches presently I made out 
two resting close together, and after securing them a chattered call 
drew attention to another. These three were the only ones seen. 
_ While Peters ” has placed this species in the genus Pionopsitia of 
Bonaparte, haematotis differs definitely from the type of that genus, 
P. pileata, in slender, compressed bill, and much shorter tail and so it 
is logical to follow Ridgway ® and segregate it in a separate group, 
Pyrilia. The decidedly swollen bill in pileata is especially striking. 
The downs in haematotis are heavily developed and show among the 
contour feathers. 
ARATINGA CANICULARIS CANICULARIS (Linnaeus) 
Psittacus canicularis LinNAEUS, Systema naturae, ed. 10, vol. 1, 1758, p. 98 
(northwestern Costa Rica). 
Near Liberia these parakeets, known as the chocoyo, were so common 
that they were seen daily. At the end of October screeching flocks 
flew about the brush-grown pastures at the Rio Colorado, while later 
they were found in larger numbers along the Rio Liberia. November 
3, | recorded one flock of 200, and Carlos Aguilar saw an even larger 
band near town one evening. Specimens were taken on October 20 
and 28. 
7 Check-list of birds of the world, vol. 3, 1937, p. 211. 
8 U.S. Nat. Mus. Bull. 50, pt. 7, 1916, p. 203. 
