Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
TROCHET, JOHN
1991
Lesser Goldfinch
Carduelis psaltria
Bld land along Cut Creek, 1 mile E. of Clear Ranch adjacent to Quarry section of Dinosaur National
Monument, Uinta Co., Utah. Elevation 5000 ft.
June 16 At 18:09 I was about to shoot an apparent green-backed male sitting on
a wire 20 feet above the ground when another male goldfinch came out of the
field directly underneath the bird perched on the wire. This second bird few past
me to the riparian zone along Cut Creek 30 yards to the south. I turned
towards to see the bird on the wire drop into a scraggly, 4' tall grassweed plant,
one of five grassweeds standing well above the grey-green, 8-12" pretty unknown
(texas) species of bush. At, try, emerged from the site (maybe 12-15 seconds
after landing there) and flew to the riparian zone. I walked to the grassweed
and found the female sitting (closely) on her nest, not fleeing in front, until I
was 2-3 inches from touching her. The nest was in the densest clump of leaves
on the plant, six inches from its top. The three eggs were all ovaloid eggs.
I positioned a mist net near the nest. At 18:50 the first males returned
to the sitting and having fewed forward with the other male on the wire above,
he flew out away from the nest and was not captured. He appeared
to be sleek-backed. The green-backed one dropped to the nest briefly
and also flew out away from the net (which was positioned between two
nearby Cut Creek). I walked to the opposite side of the nest where I might
place the bird into the net. At 19:11, the males few back together and
landed on the wire. The sleek-backed bird dropped down to the nest after a
wait of about 45 seconds. I changed the net and fewed the male into
the net. The green backed one still sat on the wire, and the female still
on the nest. After I retreated to cover 25 yards away, the green-backed one
few down from its perch directly into the mist net. I succeeded in netting
the female as well. I have found only 2 nests here - both attended by 2
adults (6) & / /. In both nests the sleek-backed one took precedence at
the nest. I am also aware of any literature including lesser goldfinch away