Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
The study of the White Crowned Sparrow was made on
August 2, 1950 in an unsuccessful attempt to locate its
nest in the swampy meadow marshland about 500 feet from
the Lodge .
The observation point was the green house which was
occuppied by the observers from 10:50 to 11:30 o'clock
in the morning.
At 10:54 the observers spotted a W.C.S. was seen on
the rope preening its feather. It was located 40 feet
from the willows. A minute later it flew unto the willows
with food in its mouth.
It then flew on the wire again and two minutes later
it was heard calling from closed edged of Willows. It
scratched itself intermittentlyIts chips averaged one per
second. It was soon seen nibbling on green seed food of
monks' hood. The wind blowing caused the door to make
noise and scared the W.C.S.
At about 11:06 another W.C.S. was spotted on the wire
and was preening its breast occasionally. It moved head
and chipped,its head continuing to move. It soon flew away
to the south in the marshes and was not seen again.
In the meantime the original W.C.X. continued its
movement from thewire. At 11:10 - it flew to a lower
branch-partially observedand was seen feeding on insects
for the next several seconds.
At 11:12, the bird was on the ground under the Willows;
then it moved up to the Willows again and gave a higher
pitched note.
Two minutes later it flew 15 feet to the east to another
willowand was again feeding apparently on the Willows'
branches.
It now chipped less frequentlyas it continued to
for-ge in the Willows for food. The bird continued to
do this and at about 11:20 it hopped to the ground. It
pecked at leaves.
A few minutes later the bird moved up to the Willows
and then flew 25 feet to the north now northeast of the
building where it chipped at a one per second rate.
Three minutes later it flew to the West on the
wire. It flew then in the next minute to the Northeast
and the observers lost it for a few minutes(SEnds),
At 11:30 1/2 it was found in the edge of a thicket with a
moth in its bill. At 11:31. the bird ceased calling and
three minutes later the observers ended their observations.
Observers were: Howard Cogswell, Bob Sanders and Paul
von Hafften..
Report typed by Sanders,
who is biology instructor
in Mclatchie High School,
Sacramento, Calif.