Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Journal
(23 May) display was quite intense, and horned larks,
pipts, and a few wheatears were also displaying.
Density of horned larks seems to have increased,
and I occasionally see interspecific interactions
between larks and longspurs.
At 8:30 saw my first afternigon of the
day - 2 ♂ rocks in a fierce territorial encounter
on the SW face of Center Hill. Otherwise, I
heard no display and the birds were in hiding.
Saw pectorals twice today - a very rapid,
twisting flight of 4 birds, and a ♂ in full
hooting display on the SE side of Center Hill!
Found the 2nd and 3rd (and final)
surf birds of the day on the S. side of Center
Hill at 10:16. Watched these for a while,
then came in to eat and rest.
In the afternoon I wanted to see if
I could find pectorals along the road to
collect. Jerry and I drove down to the
lower camp to get the shotgun from
Sandy. Could not finder, so we looked
for birds, instead. Saw a pair (presumably)
of yellow-shafted flickers and a pair of
Sparrow-hawks - near the Northern end
of the range of these. Next drove up to
Eagle Summit. Saw no pectorals - only a few
bairdi (there are more abundant and active today
than before). Spent about 45 minutes on