! 
I 
B. S. 1707S - Young great blue heron 
reared from nest. Note expanded alula. 
Mouth of Bear River, Utah. 
June 23, 1916. 
• B. S. 17079 - Young great 
blue heron preening. Mouth of 
Bear River, Utah. 
June 23, 1916. 
' 
