FAMILY CUCULIDAE 133 



coverts grayish brown, tipped with buff; primaries and secondaries 

 grayish brown, edged narrowly with grayish white ; tail grayish brown, 

 edged with cinnamon to deep buff, tipped with buff or white ; a broad 

 white supra-auricular streak ; auricular region black, lined with cin- 

 namon to cinnamon-buff ; a narrow black malar streak ; f oreneck, 

 sides of neck, and upper breast buff to cinnamon, (except in some 

 the upper breast light gray) ; lower breast, sides, and abdomen white ; 

 crissum cinnamon-buff to cinnamon ; under wing coverts and bases of 

 flight feathers white; bases of under surface of rectrices black in 

 center. 



Immature, crown mainly sooty black, each feather with a transverse 

 spot of buff; scapulars and wing coverts tipped with a spot of buff, 

 with a narrow basal bar of black ; side of neck, and in some individuals 

 the entire foreneck, with narrow, indistinct bars of dull black. 



A male taken at Puerto Armuelles, Chiriqui, February 6, 1966, had 

 the iris pale orange ; a spot in front and another back of the eye honey 

 yellow ; culmen broadly fuscous-brown ; side of maxilla below nostril 

 light dull brown ; tarsus and toes light brownish gray ; claws dusky 

 neutral gray. 



A female taken at Juan Mina, Canal Zone, January 14, 1961, had 

 the iris buffy brown ; gape yellow ; line of culmen dusky neutral gray ; 

 side of base of maxilla from gape to nostril brownish buff; side of 

 maxilla, from nostril to dark tip, light brown ; cutting edge of tip of 

 mandible dusky neutral gray ; rest of mandible pale neutral gray ; tar- 

 sus gray; toes similar but with a greenish cast; claws fuscous. An- 

 other female shot at El Llano, Panama, February 3, 1962, had the 

 iris brownish orange; edge of eyelids and space in front of the eye 

 and behind it greenish yellow, changing to yellowish green above and 

 below; line of culmen and extreme tip of maxilla black, this color 

 extending down to the nostrils ; side of maxilla Verona brown, shad- 

 ing to dull yellow at gape and on side of mandible ; rest of mandible 

 light neutral gray; tarsus light neutral gray with the edge of the 

 scutes lined narrowly with dull buff; toes slightly darker, with buff 

 edging only at the joints ; claws dark neutral gray. 



Measurements. — Males (10 from Panama), wing 108.1-117.5 

 (112.4), tail 148.0-165.0 (157.7), culmen from base 21.0-23.2 (21.8), 

 tarsus 32.3-36.1 (34.2) mm. 



Females (10 from Panama), wing 104.0-112.3 (108.2), tail 140.0- 

 162.0 (146.2), culmen from base 20.2-22.6 (20.8), tarsus 30.5-33.0 

 (32.0) mm. 



Resident. Common on the Pacific slope from the Costa Rican boun- 



