FAMILY COLUMBIDAE 20, 



ricefield. The 2 fresh-laid eggs rested in a shallow depression on a 

 thin mat of straw and other fine fibers, placed under the edge of the 

 roof thatch about 2 meters above the dirt floor. These eggs measure 

 22.2 X 18.3 and 23.5 X 17.6 mm. In a subsequent visit, on February 17, 

 beside the rancho I found another nest made of a scanty assemblage 

 of straws placed on the top of a small stub a meter tall. This also 

 held 2 eggs that appeared to have been laid recently. The shape of 

 the eggs is between elliptical and subelliptical. Skutch {loc. cit., p. 193) 

 gives measurements of 16 eggs as ranging from 21.8-25.4x15.9- 

 17.9 mm. He recorded both parents incubating, the female through 

 the night, the male for a shorter period during the day. 



Near Pacora these birds were called Palomita titibiia. 



The considerable series of skins available from Panama shows the 

 usual range of variation, but on the whole is faintly grayer than an 

 equal number in our collections from northern Colombia. The few ex- 

 amined from the eastern slope of the Azuero Peninsula are especially 

 gray. 



COLUMBINA TALPACOTI NESOPHILA (Todd) 



Chacmepclia rufipennis nesophila Todd, Ann. Carnegie Mus., vol. 8, May 8, 1913, 

 p. 590. (Isla del Rey, Archipielago de las Perlas, Panama.) 



Characters. — Male, faintly deeper, brighter brown above, particu- 

 larly on the wing coverts ; female browner on the lower surface, espe- 

 cially on the flanks and under tail coverts. 



Measurements. — Males (8 specimens), wing 85.7-89.0 (87.8), tail 

 57.1-65.6 (62.0), oilmen 12.0-13.8 (13.0), tarsus 16.7-18.9 (17.8) 

 mm. 



Females (7 specimens), wing 83.0-88.3 (84.7), tail 59.1-64.8 (61.8), 

 culmen 11.4-13.8 (12.6), tarsus 16.4-18.3 (17.2) mm. 



Resident. Local in the Archipielago de las Perlas (specimens seen 

 from San Jose, Pedro Gonzalez, Rey and Saboga Islands ; sight 

 records presumed to be this race on Chapera and Canas Islands) ; Isla 

 Coiba. 



It has been interesting to find that these doves from Coiba Island 

 agree in color with those of the Archipielago de las Perlas, an indi- 

 cation of unity that was unexpected. 



On Isla Coiba I found them in little groups in the pastures where 

 the grass was cropped short, or where it grew in scattered tufts on 

 the poorer soils. January 11, 1956, I flushed a female from a nest 

 placed 2 meters from the ground on the top of a recently cut stump, 



