6 3 6 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



Caribbean slope from western Bocas del Toro to eastern San Bias, and 

 P. sanguineus of the west coast of Colombia and northwest Ecuador. 

 As HafTer ( Amer. Mus. Nov., no. 2294, 1967, pp. 27-36) has discussed, 

 a zone of hybridization occurs in northern Choco, Colombia, on the 

 border with Darien, so it is not surprising that birds from Darien 

 should also be intermediate. 



The 2 specimens are in the collection of the Gorgas Memorial Lab- 

 oratory. One, no. 0608, is a male collected by Dr. Pedro Galindo at the 

 Rio Mono Base Camp on February 18, 1969. It lacks a band across the 

 hindneck, as in sanguineus, has the stripe along the upper mandible half 

 developed, and the tip of the upper mandible mixed yellowish and 

 blackish; it would be ranked a 4, on Haffer's hybrid index, i.e., closer to 

 sanguineus (0) than pure torquatus (12). The other specimen, un- 

 sexed and unnumbered, was collected by Ridgely at Quebrada Matu- 

 janti, 50 m, on July 20, 1975, in a small stand of second growth and 

 forest. It had the iris yellow, tarsi olive-green, bare skin around eye 

 carmine, most of maxilla ivory whitish, outer fifth more yellow, red- 

 dish toward base; mandible and tip of maxilla black, with an ivory- 

 white stripe at the base of both. The band across the hind neck is 

 barely indicated, the stripe along the upper mandible weakly developed, 

 and tip of the upper mandible black, giving it a value of 7 in Haffer's 

 index. 



Family CUCULIDAE: Cuckoos, Anis, and Allies; Culillos, 

 Garrapateros, y Especies Afines 



[COCCYZUS PUMILUS Strickland: Dwarf Cuckoo, Cuclillo Gusanero 



Coccyzus pumilus Strickland, 1852, in Jardine's Contr. Orn., p. 28, pi. 83. (Vene- 

 zuela.) 



An individual of this species was seen at Tocumen marsh, eastern 

 Province of Panama, on January 9, 1979, by V. Emanuel, D. Wolf, 

 and others (Ridgely, in litt.). This species inhabits dry forest in 

 Venezuela and Colombia, where, with the cutting of humid forests, its 

 range has recently expanded (Ralph, Condor, 1975, p. 60).] 



[COCCYZUS LANSBERGI Bonaparte: Gray-capped Cuckoo, 

 Cuclillo Acanelado 



Coccyzus lansbergi Bonaparte, 1850, Consp. Av., 1, p. 112 (Sante Fe de Bogota.) 



An individual was seen at Tocumen marsh, eastern Province of 

 Panama, on February 10, 1980, by V. Emanuel and M, Braun (Ridge- 



