Nature Notes From Crater Lake
Volume 13, October 1947
Fox Sparrows Breeding on the
Rim
By Dr. R. R. Huestis, Ranger-Naturalist
On July 30, Park Naturalist George C.
Ruhle identified a fox sparrow,
Passerella iliaca, sub. sp., on the rim walk just east of Crater
Lake Lodge. The writer, who was a member of the field party being led by
Mr. Ruhle, went back to the area on the morning of July 1 to see if the
bird was still there. This special trip was prompted by knowledge of the
fact that fox sparrows had not been reported even as transients in the
rim area during the seven summers in which the writer has been a
seasonally employed ranger-naturalist at Crater Lake National Park.
On July 1 at 8:30 A.M. a singing male,
presumably the one identified by Mr. Ruhle, was seen on a small mountain
hemlock close to the rim walk; near him was a female, presumably the
second bird that was heard but not observed the previous day. This
female was carrying food and while the writer watched she signaled out
of cover and fed a young bird apparently in juvenile plumage. After an
interval of about two minutes the female reappeared with food, made
contact with, and fed a young bird this time in the cover of a clump of
small mountain hemlocks and herbaceous shrubs close to the rim walk. The
observer was within twenty feet of the birds involved in these two
important episodes in the lives of avian young.
A prior report upon Passerella
within Crater Lake National Park was made by Joseph Dixon who collected
a fall migrant Valdez Fox Sparrow in 1936. The present family group was
not broken to provide a bird in hand. The probability is that this
report concerns P. I. fulva, Warner Mountains Fox Sparrow.