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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
TRECHET, J.A.
1971
Lesser Goldfinch
Carduelis psaltria
Santa Ysabel Kern River Wildlife Area, 3 miles N.W. of Weldon, Kern Co., California.
Elevation 2500 ft.
July 15 found Lesser and Lawrence's goldfinches swimming together. Today, on the west (cont.) end of the riparian vegetation, I found 3 American goldfinches. Having earlier found both Lesser & Lawrence's goldfinches here, I note that this woodland is the first I've found with all members of the subgenus Carduelinae present.
I cannot see any difference in behavior noted by Lesser & Lawrence's pair, though the latter is less numerous here and more patchily distributed in the stretches of riparian woodland with large trees, where they do not exclude Lesser goldfinches. The three American goldfinches, all males, two together & a singer this sun later, were all in the saplings at the western margin of the woodland, where the E shore of Lake Isabella would be uninhibited for too drought.
Washington Ranch, adjacent to Lettsworth Springs portion of Carlsbad Caverns National Park, Eddy Co., New Mexico. Elevation 3650 feet
July 31 On July 29, there were about 120 Lesser goldfinches near & at adjacent Lettsworth Springs (a fence divide fairly continuous hatched). Yesterday, there were about 60 goldfinches. Today, I could find only about 30. But today, as with both preceding days, there are lots of goldfinches singing, many fights & clashes between males and between females. If goldfinches were observed as 2 or 3 pairs. There is every evidence that breeding is continuing here, and by several pairs. I can be certain of only one pair, however, who are attending a nest (? sitting quietly most of the last 2 days) 10-11 feet up in a hackberry in a mixed deciduous open outside the SW boundary fence of the Ranch. The male of this pair is about 75% black-backed. About 30% of adults were apparently entirely black-backed (but we cannot tell X in the field), the remainder (save about 10%) mixed black & gray backs, tending