Jan. 2°) 
ues BANGS 
CHIRIQUI BIRDS 49 
Merula nigrescens (Cab.). 
Twenty-four specimens, both sexes, Volcan de Chiriqui, 10,000 
to 11,100 feet, May and June. Mr. Brown did not see this 
species below 10,000 feet. 
Merula obsoleta (Lawr.). 
One male, Caribbean slope of Volcan de Chiriqui, 4500 feet, 
June 13. 
Merula plebejus (Cab.). 
Four adults, both sexes, Boquete, 4000 to 7000 feet, February 
and April. All four have larger bills than Costa Rica specimens, 
but otherwise are similar. 
Merula leucauchen dagnz (Berlepsch). 
Nine specimens, both sexes, Boquete, 4000 to 5000 feet, 
January to April. The type locality of this form is western 
Colombia. All Chiriqui birds appear to belong to it, differing 
from true AZ, /eucauchen in smaller size, and darker brown upper 
parts. 
Merula grayii casius (Bp.). 
Seven specimens, both sexes, Boquete, 4000 to 4500 feet, 
January and March. 
Hylocichla ustulata swainsonii (Cab.). 
Five specimens, both sexes, Boquete, 4000 to 4800 feet, March 
24 to April 4. 
