298 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



bits of plant material for her nest, the woodpeckers for a time may 

 throw this out but finally move to other quarters. The female becard 

 incubates alone, but the male in due course assists in feeding the 

 young. 



Kaup named this form for Louis Fraser (born 1819), at one time 

 curator at the Zoological Society of London, and later an associate in 

 connection with work on the collection of Lord Derby. According 

 to Hellmayr (Cat. Birds Amer.. pt. 6, 1929, p. 223) the type material, 

 now in the Liverpool Museum, includes three specimens. Two of 

 these, male and female from the Derby Museum, without data, are 

 typical of the present race, which also is the bird represented in the 

 plates published with the original description. The third specimen, 

 a male purchased from the dealer Leadbeater, also from the Derby 

 Museum, agrees with the race albitorques. Kaup's measurements 

 for the bill apply only to the first male (original number 1868) which 

 was therefore selected as the type. As Kaup indicated no locality, 

 Hellmayr designated Veracruz, Mexico. 



In my work in the field I have found these birds in the scanty 

 remaining forests in Chiriqui, in the Burica Peninsula, near El 

 Volcan, and at Las Lajas in the eastern part of the province; also 

 near Almirante, Bocas del Toro. They were fairly common in 

 Herrera, in northern Azuero Peninsula, in 1948. In the northern 

 Canal Zone they are recorded rather regularly on Barro Colorado 

 Island. Two, a male and a female, taken near Mandinga, San Bias, 

 appear somewhat intermediate between this race and albitorques. 



ERATOR INQUISITOR ALBITORQUES (Du Bus) 



Tityra albitorques Du Bus, Bull. Acad. Roy. Belg., vol. 14, pt. 2, 1847, p. 104. 

 (Peru.) 



Characters. — Male, lighter colored, paler gray on back and upper 

 tail coverts ; female, dark gray above, from upper back to base of 

 tail ; usually lighter below. 



A male taken at the old Tacarcuna village site on the upper Rio 

 Tacarcuna, Darien, March 6, 1964, had the iris wood brown ; maxilla, 

 except base, and cutting edge of mandible, except basal one-fourth, 

 black ; side of maxilla at base from gape to below nostril, and rest of 

 mandible neutral gray ; tarsus and toes somewhat brownish dark 

 neutral gray ; claws black. 



A female, collected at Pucro, Darien, February 2, 1964, also had 

 the iris wood brown ; a line on the side of the maxilla from the gape 

 to below nostril, and mandible, except for tip and anterior half of 



