192 



BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



toothlike projection on the maxilla, dull brown ; tarsus and toes pale 

 brown ; base of claws light brownish white, tips dull black. 



Measurements. — Males (15 from Panama and Colombia), wing 



Figure 31. — Lesser potoo, urutau, Nyctibius griseus panamensis. 



264-282 (271.3), tail 174-196 (182), culmen from base 24.2-29.8 

 (26.2), tarsus 12.0-14.8 (13.3) mm. 



Females (3 from Panama and Colombia), wing 268-282 (275), tail 

 178-196 (185), culmen from base 25.5-27.6 (26.4), tarsus 13.0-13.5 

 (13.2) mm. 



