476 BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



Here they perch quietly like the larger species, inconspicuous because 

 of their small size. They eat small insects that they fly out to pick 

 from leaves or branches. I have recorded the voice as low, soft call 

 notes. 



On the Caribbean slope this race of the pied puff bird ranges to 

 northeastern Costa Rica in the Sarapiqui lowlands. To the south it 

 extends across northern Colombia to the middle Magdalena Valley, 

 and south in western Colombia to northwestern Ecuador. Typical 

 N. t. tectus, found from southern Venezuela to northeastern Brazil, 

 differs in much broader black band on the breast, in the entire crown 

 spotted with white, and in slightly larger size. 



NYSTALUS RADIATUS (Sclater) : Barred Puffbird, Bobito Rayado 



Figure 59 



Bucco radiatus P. L. Sclater, Proc. Zool. Soc. London, pt. 21, 1853 (November 



14, 1854), p. 122. (Magdalena Valley, Colombia.) 

 Bhcco fnlvidus Salvin and Godman, Biol. Centr.-Amcr., Aves, vol. 2, March 



1896, p. 514. (Veraguas, Panama.) 



Medium size; varying in color from cinnamon-buff to rufous, 

 barred with black, heavily above, more lightly below. 



Description. — Length 205-220 mm. Two color phases, one paler, 

 one darker. Adult (sexes alike), crown russet, broadly barred with 

 black, with a black band, in some indistinct, across the nape ; a collar 

 of light or dark buff on the hindneck ; rest of upper surface, includ- 

 ing wing coverts, secondaries, and tail, light cinnamon-buff to tawny, 

 barred heavily with black; primaries rufous, tipped and barred 

 variably with dusky ; lores, side of forehead, and chin white ; under 

 surface buff to cinnamon-buff, barred irregularly and narrowly with 

 black except on the under tail coverts ; in some with upper f oreneck 

 and abdomen also immaculate, or nearly so ; under wing coverts and 

 inner webs of wing feathers ochraceous-buff, except on the ends 

 of the longer primaries. 



Immature, white to pale buff on the forehead, collar on hindneck, 

 and under surface ; some with the barring reduced. 



Specimens in the National Museum and the American Museum 

 of Natural History collected by Heyde and Lux at Capira, western 

 Panama Province, and Cascajal, Code, have the eye color marked 

 as yellow or light yellow. 



Measurements. — Males (10 from Panama and Colombia) wing 

 86.9-92.4 (89.7), tail 70.5-77.2 (73.6, average of 9), culmen from 

 base 30.5-35.2 (32.8), tarsus 16.7-19.8 (18.4) mm. 



