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B. S. 17087 - Oswald hunts material for a 
stick nest by the door step. Mouth of Bear 
River, Utah. 
July 10, 1916. 
B. S. 17093 - Pectoral and pelvic 
powder down patches and uropygial gland 
of young Ardea h. treganzai about 2/ 3 
grown. Gland as yet non-functional. 
Feathers are oiled by greasy powder from 
powder downs. Mouth of Bear River, Utah. 
July 20, 1916. 
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