376 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
Fam. TROGONIDA. 
26. Trogon melanocephalus Gould. 
Probably common, although I secured only one specimen. The dif- 
ference of avifaunz of regions only a few miles apart is a fact continu- 
ally forcing itself upon the notice of the explorer in the tropics. San 
Juan del Sur, for example, is not more than 40 or 50 miles from “La 
Palma,” Costa Rica, and they are both on the Pacifie coast. At the 
latter point I found three species of Trogon very abundant, i. e., T. me- 
lanocephalus, T. massena, and T. caligatus. At San Juan del Sur a dili- 
gent search failed to discover a single specimen of the last two species, 
and only one of the first was taken. 
Iris brown. Bare orbital region sky-blue. 
Fam. CUCULID. 
27. Crotophaga sulcirostris Sw. 
Abundant. Delights in hedge-rows and feeds largely upon the worst 
enemy of the collector, the “ garrapata” or tick. One specimen. 
*28. Diplopterus nevius (Gm.). 
One specimen shot out of a hedge in an open field. Appears to be 
terrestrial in its habits. 
29. Piaya cayana mehleri (Bp.). 
Common. The loud mournful cry of this bird is frequently heard 
around San Juan. 
It is graceful in its movements and is conspicuous both for its ery and 
the peculiar and constant flirting of its long tail. Strictly arboreal. 
Iris deep red. Skin exceedingly tender. Three specimens. 
*30. Coccyzus seniculus (Lath.). 
Not rare. Is less shy than any other member of its family with which 
I am acquainted. Arboreal. Never heard its note. 
Fam. PSITTACID A. 
*31. Ara macao (Linn.). 
Common, but not nearly so abundant as in other parts of the country. 
None secured. 
*32. Chrysotis albifrons (Sparm.). 
Abundant. Iris very pale yellow. Bill lemon yellow. 
This beautiful parrot is much sought after by the natives on account 
of its bright plumage, and has been made quite shy by continual per- 
secution. So much is this the case that I found it difficult, at first, to 
secure specimens, and finally succeeded by a method almost inexcusable 
from its cruelty. 
Having succeeded in wounding one, I took advantage of its piercing 
screams of distress, not dispatching it at once, as humanity dictated, 
