Smithsonian Report, 1930. — Chapman 



PLATE 6 



■..^ 



1. Zarhynchus nest bags in the sand-box tree swaying in a fresh breeze. Their motion illustrates the necessity 

 for the soft nesting material at the bottom of the bag forming the true nest. Photographed from the labora- 

 tory level, with a 14-inch lens. 2. Fallen nest of Zarhynchm cut open at the bottom to show the single nest- 

 ling it contained, nearly ready to fly. Note the light (yellow) marks on the forehead at each side of the base 

 of the bill. April 1, 1927 



