340 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I50 



Description. — Length, 200-210 mm. Adult (sexes alike), oliva- 

 ceous-brown above, more rufescent on the scapulars; side of head 

 grayish brown ; under surface rufous brown, lighter on the throat, 

 darker on the sides and under tail coverts ; wings fuscous, margined 

 with brown; under wing coverts grayish brown to nearly black, 

 washed lightly with rufous brown. 



Immature, duller, more grayish brown on lower surface. 



Iris orange-brown ; side of maxilla, to a point anterior to nostril, 

 and mandibular rami, dull yellowish green ; rest of bill dusky neutral 

 gray ; bare skin adjacent to gape, and along the base of the mandible, 

 dull grayish purple ; front of tarsus and toes fuscous ; sides and back 

 of tarsus somewhat reddish brown ; crus light reddish brown ; distal 

 end of claws dark neutral gray. 



Measurements. — Males (4 from Panama), wing 110.9-118.0 

 (114.3), tail 39.0-43.2 (41.8), culmen from base 25.5-28.2 (26.6), 

 tarsus 40.8-42.9 (41.5) mm. 



Females (3 from Panama and Nicaragua), wing 110.0-114.0 

 (111.5), tail 44.7-46.7 (45.3), culmen from base 26.2-26.5 (26.3), 

 tarsus 39.8-42.4 (41.3) mm. 



Resident. Tropical zone, rare; recorded from Chiriqui (without 

 definite locality) ; Bocas del Toro (Almirante) ; San Bias (Man- 

 dinga) ; Darien (sight record. El Real) ; and Isla San Jose, 

 Archipielago de las Perlas. 



There is a female from Chiriqui in the American Museum of 

 Natural History (Chapman, Bull. Amer. Mus. Nat. Hist., vol. 36, 

 1917, p. 217). H. von Wedel collected one at Almirante, Bocas del 

 Toro, on August 5, 1927, and I shot two there on February 15 and 

 March 5, 1958. At Mandinga, San Bias, I secured another on 

 January 28, 1957. The record for Isla San Jose is of a female taken 

 August 23, 1944 by Dr. J. P. E. Morrison. On January 23, 1964, I 

 had a brief view of one at the edge of a road leading through marshy 

 land near El Real, Darien. 



The first one that I found at Almirante was in a dense thicket at 

 the border of a banana plantation. My companion saw it move in the 

 dark shadows, and after a few minutes, during which we remained 

 partly hidden, it came furtively to peer at me. The second bird lurked 

 half concealed under the ground cover at the border of a swampy 

 spot. The one taken at Mandinga was in second growth at the 

 border of a small quebrada. 



The only published record of the egg that I have seen is that of 

 Nehrkorn (Kat. Eiersamml., 1899, p. 202), who described one from 



