Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cassin Sparrow territories
Sec. 44 Lot 8 etc. June 30/64
by location of singing spots
N
#1
#2
#3
#4
#5 [o6]
private tank