278 



CHAPTERS ON THE NATURAL HISTORY 



tree below it. On the upper side of this partition the seven 

 young " flickers," or " high holes," as they call them in New Eng- 

 land, had been hatched. 



FIG. 68. PTERYLOSIS OF HARRIS'S WOODPECKER. 



Left lateral view of a plucked specimen of Harris's woodpecker (D. v. harrisii) ; adult male ; d, upper 

 part of the "inferior space " (Apt. mesogastr&i ; k, the uropygial gland of the left side ; /, its exter- 

 nal papilla with opening at its summit, which is also " tufted." 



On May 31, 1896, I vertically divided this nest directly through 

 its median plane, and placing it in a favorable position for light, 

 and allowing six of these young birds to settle down in normal 



