NOTES ON THE FOOD OF BIRDS 
51 
packed with them. They caught the moths by leaping in the 
air two or three feet from a gravel walk. 
The Evening Grosbeak 
A large flock of these beautiful birds (Cocothraustes vesper- 
tinus montaru/s) visited Las Vegas in the fall of 1900, and 
everyone had an opportunity to see them eating the seeds of 
the box elder. 
