24 BIRDS OF THE REPUBLIC OF PANAMA — PART 2 



Measurements. — (From Aldrich and Duvall, Condor, 1958, p. 110). 

 Males, wing 136.5-154.0 (144.8), culmen 12.0-14.5 (13.3), tarsus 

 19.5-23.0 (21.5) mm. 



Females, wing 130.5-143.0 (137.9), culmen 12.0-15.0 (12.9), tarsus 

 19.5-21.5 (20.7) mm. 



Migrant from the north. Of casual occurrence ; one record. 



The only report at present is that of a specimen in the Museum of 

 Comparative Zoology that was shot by W. W. Brown, Jr., at Divala, 

 Chiriqui, November 11, 1900. 



This subspecies breeds in the eastern United States and southeastern 

 Canada, and has been identified as a winter migrant in southern 

 Mexico on several occasions. Farther south there is 1 specimen 

 recorded from Guatemala, and 1 from Nicaragua, in addition to 

 the 1 specimen from western Panama listed above. 



Hellmayr and Conover (Cat. Birds Amer., pt. 1, no. 1, 1942, p. 478) 

 give the date for the bird last mentioned as November 26, which is in 



ZENAIDURA MACROURA MARGINELLA (Woodhouse) 



Ectopistes marginella Woodhouse, Proc. Acad. Nat. Sci. Philadelphia, vol. 6, 

 no. 3, May-June (Aug. 20), 1852, p. 104. (Cross timbers on the North Fork of 

 the Canadian River, Oklahoma.) 



Large in size, like Z. m. carolinensis, but distinctly paler in color. 



Measuretnents. — (From Aldrich and Duvall, he. cit., p. 110). 

 Males, wing 137.0-156.5 (144.3), culmen 12.0-16.5 (13.5), tarsus 

 19.5-23.5 (21.3) mm. 



Females, wing 131.5-154.0 (141.7), culmen 12.0-15.0 (13.5), tarsus 

 19.5-21.5 (20.5) mm. 



Migrant from the north. Found locally in small number on the 

 Pacific slope in western Panama east to Herrera and Code, from 

 November to early April ; one record from Bocas del Toro. 



The few early reports include specimens taken by Heyde and Lux 

 at Nata, Code, January 14, 1890, by W. W. Brown at Divala, 

 Chiriqui, and by Arce on the slopes of the volcano, also in Chiriqui. 

 In my own work I have seen birds that I believed to be migrants and 

 probably of this race near Pese, Herrera, March 30, 1948, above El 

 Espino, Panama, March 24 and April 1, 1951, and near Alanje, 

 Chiriqui, March 4, 1960. All were difficult to approach, and when 

 flushed flew far away out of sight. Individuals of the resident race 

 while timid are less wild. 



I have 1 specimen from Almirante, Bocas del Toro, taken by R. 



