Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
B. Richardson
934
Mountain Chickadee.
May 19 Quaking Aspen Meadow
Tulare Co., California.
Apparent nesting locality
in a Quaking Aspen just
below the Flying squirrel
nest. The entrance was
through a knot hole about
the size of a half dollar.
While we were working at the
flying squirrel nest one of
the birds entered and
remained at the nest for
about 10 minutes.