U. S. NATIONAL MUSEUM 



BULUETIN 191 PLATE 50 



Ithaca, N. Y., May 26, 1918. 



A. A. Allen. 



Nest in a bird box. 



Harwich, Mass.. July 13, 1923. 



Adult feeding )-oung. 

 Black-Capped Chickadee. 



A. C. Bent. 



