282 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



might indicate that they belong with 5. m. inter medius, the bird from 

 Panama and Veragua, but in other characters they are typical of 

 medianus, being darker gray on the forehead, and having the belly 

 grayish rather than brownish. Moreover, the specimens in question 

 are from a locality midway between the type localities of the above 

 two races, and it is reasonable to expect that signs of intergradation 

 might occur. 



