Nature Notes From Crater Lake
Vol. 15, No. 1, September, 1949
Ornithological Notes of
Interest
By Ralph R. Huestis & Paul Shepard, Jr., Ranger-Naturalists
Passing observation was made of a
number of bird species during the 1949 season. Rosy finches were seen
near the top of Garfield Peak Trail and on Cloudcap on several occasions
and during the last week of July a parent was seen feeding two birds of
the year. The hunger cry of these proved to be quite musical and a
pleasant change from the bleats of young robins and squawks of
petitioning nutcrackers so commonly heard in the Rim Camp.
On August 4th two golden eagles were
soaring over Garfield Peak and the next day an immature bird was seen
over the rim drive behind Llao Rock. Golden eagles were seen over
Garfield again on August 13 by the morning field trip party. When seen
in the park, they are more often observed in the area along the rim
between Garfield and Applegate Peaks than elsewhere. Consequently, this
area is called Eagle Crags. Although both bald and golden eagles have
been seen along the rim, recent nesting records here are of bald eagles
which bred seven years ago on Wizard Island. No bald eagles were
reported this year.
On August 5th a flock of about 20 large
finches was feeding along the edge of the crater of Wizard Island. They
moved rapidly but ultimately one bird perched within about forty feet
and in full view of the binoculars. It appeared to be a female pine
grosbeak, and the undulating flight of the flock as it crossed Skell
Channel presented additional evidence in favor of the identification.
Rock wrens, unreported during the 1948
season, were present on the large talus slope underneath the Garfield
Peak trail. Singing birds were heard there during the second week in
July. In past seasons these handsome little rock dippers have been
common inside the rim, their pleasant song rising to greet the Sinnott
Memorial attendant on his arrival.
During our stay in the utility area at
headquarters we heard more than the usual number of olive-sided
flycatchers. In the same locality during the first week of July, Audubon
Warblers were present in considerable numbers but no other warbler
species were heard or seen.
From the rim viewpoint just west of
Hillman Peak, ravens have been observed a number of times during the
summer. Past observations strengthen an assumption that these large
corvids nest within the rim. During June and July a company of four,
probably a family group, have been seen casually along the rim from the
lodge to the Devil's Backbone, sometimes flying over the Rim Village or
wandering down Munson Valley. The hoarse croak and the long pointed
wings distinguish the ravens from their close relatives, the crows, and
the ranges of the two birds seldom overlap.
Besides those of golden eagles there
have been some other interesting notes on birds of prey this summer. The
red-tailed hawk has previously been reported nesting in upper Munson
Valley, and evidently did so again this year. At least one immature
red-tail wandered about the valley near park headquarters. It was seen
several times during July and August, giving the hunger cry almost
constantly and being besieged by robins, tanagers, and jays. The falcons
reported annually to nest in Llao Rock are prairie falcons. A family
group of two immature birds and an adult were observed near the base of
the Rock on July 27, the young giving the hunger call. During the
afternoon of Saturday, August 13th, one of the juvenile birds perched on
a hemlock by the Sinnott Memorial for about 15 minutes. A crowd of park
visitors collected on the walk in front of the Information Building, and
there was ample opportunity to identify with field glasses this
strikingly light-colored, dark-eyed falcon, whose plumage contrasts to
the dark color of the duck hawk. Although the latter nests typically
near a body or stream of water, the paucity of waterfowl and shorebirds
on the lake would suggest that these falcons depend largely on small
mammals for food, as would be expected of prairie falcons. One member of
this family group was observed soaring on the outside of the rim on
August 4th.
During the latter part of August and
early September a rather extensive migration of hawks passed through the
park. When northwest winds prevailed, creating thermals on the west
slopes, the fire lookout on Scott Peak reported scores of hawks of
several species passing all day long. Notable among them were goshawks,
marsh hawks, and a number of eagles.
The handsome state bird of Oregon, the
western meadowlark has been seen again in the meadow east of the lodge,
this year on July 8th. Post nesting dispersal probably accounts for the
singular appearance of the only member of the blackbird family that has
been reported from the rim area during the summer. As winter approaches
the meadowlark gathers in small flocks and move down into sheltered
valleys. like the eastern meadowlark, it's mellow, fluted notes may be
heard in fields any month of the year. It is not to be confused with the
true larks, of which the western representatives are the horned larks.
Another family, the pipits, have a member known commonly as the
"American skylark."