Plate XXV. Nestling Prairie Horned Larks of Nest No. 7—continued. 
Fig. 1. Two young fourth day, two young third day, April 29, 
1926. 
Fig. 2. Two young fifth day, two young fourth day, April 30, 1926. 
The younger nestlings are now noticeably smaller and are forced 
the few exceptions to this position). 
7 
