Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1972
Journal
over a very wide area and these areas overlap greatly. Little
antagonism (or at least only sporadic at best) is shown between
males.
There may be some polygamy on JBP site 1. The male
attending both nests 6 and 2 is color banded SY-RY.
He drives away other males from both nest sites. There is a
possibility that one may be SW-RY - has to be double-
checked. Males will chase away other males when close to the
& Longspur seen to chase away a Hoary
nest, but not always. Redpoll as soon as it landed near him.
Shorebirds: ♀ Curlew Sandpiper at Nest 1 returned to her
nest after about 5 minutes of hesitation when camera and alarm
clock placed at the nest. Dr. Pitelka saw two male Curlews
give a territorial dispute display consisting of jumping up in the
air next to each other - similar to Buff-breasted display. This
is really beautiful because it makes the picture more
certain that the Curlew is the evolutionary transition between
the social systems of Pectoral and Buff-breasted. Dr. Pitelka
also observed a Pectoral attempt to supplant a Curlew from a
mound, but retreated when the Curlew flashed his wings - raised it
up like a Baird's.
Pectoral Sandpiper seen to chase a Semipalmated for 10 seconds,
Migration: 2 loons heard overhead. 3 Whistling Swans
flushed from near trapline III and they eventually headed west.
1 Western Sandpiper at Vagrant Pond.