Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
P. PEARSON
1952
/2
ridge and we left blind, I returned at 2:30 to find
it 2 feet from the nest, still pumping hard up and down and
calling. After about 5 minutes it returned under a grass
clump about 20 yards away. Then I crossed the ravine.
at 4 p.m., amid heavy rain-snow, a female fed for about
7 hours on the flat (calling continually)
when she finally started up the hill, she
was chased by another and finally flew screening east.
The closer then ran in some direction for about 50 yards instead
of returning up-hill to where he launched his attack. Then
he started walking back slowly until I lost him... Snow
patches accumulated on the back of the feeding one.
March 5 Ray-snow on grass in a.m. Went up to nest at 6:15, bird
was on. Watched till 7:15--but it didn't issue. Another was
calling within 50 yards, and bird on nest called a few
times. Bird also was on nest at 11:30. Another bird on
slope across from camp called all afternoon until dusk.
March 6 Bird went off nest at 11:40 a.m., returned at 12:20.
Was off at 3:40, had not returned by 4:30. Saw a chase
that we think was between 2 males. Also a chase
involving 3 birds on the east side of the road on the
farmyard. Looked like a 9 made a short flight,
then chased another bird until it flew.
March 7. Bird was on nest at 7 a.m. Squatted &
watched the dye from spring, while it was
on nest: PA didn't finish... Was off nest at
8:30, came back at 9:30. Went off at 10:50,
back at 12:15. Hail in mid afternoon. Then left at
5:00, back at 6:00. Another bird was feeding