Illustrations of the Method 5 1 



hand, and the observer had only to watch and record the rapidly 

 shifting scenes with pencil and camera. 



On the third day, July 4th, the female was on the bough in 

 six minutes, and in six and a half minutes from the beginning of 

 operations fed her brood. 



Fig. 37. Kingbird family. The male to the right has captured a dragon-fly, 

 whose stick of a body is seen projecting from the mouth of a young bird. 



The fourth day of study at this nest, or the sixth from the 

 time of displacement, was the most interesting of all. There 

 were now two foster children in addition to the two born in the 

 house, for I had transferred two birds from a former nest (No. 

 29 of table). No protest was made at this intrusion, but the 

 strangers were adopted almost immediately and fed and guarded 

 with all the care given to their own offspring. 



