Nature Notes From Crater Lake
Volume 20, 1954
Breeding Activities of Crater Lake
Birds
By Robert C. Wood, Ranger Naturalist
During the summer of 1954, several
nesting records of interest were added to the park's ever-increasing
store of ornithological information. Nests were found, each for the
second time only within Crater Lake National Park, for two species.
These were the ruby-crowned kinglet,
Regulus calendula (Linnaeus), and the Pacific nighthawk,
Chordeiles minor (Forster).

Nest & Eggs of Pacific Nighthawk
From Kodachrome by Richard M. Brown
|
On July 16, between lower Munson Meadow
and the road to Annie Spring, at an elevation of about 6,200 feet, I
discovered the ruby-crowned kinglet carrying food to a nest crowded with
five nearly-grown young. The nest was situated in a lodgepole pine, near
the outer end of a dense mass of branches about ten feet above the
ground. It was so well hidden as to be only barely visible from below.
The bulk of the nest was made up of dead lichens, with much deer hair
woven through it. A few bits of rabbit fur and red string were scattered
around the top and sides. Feathers lined the interior, one of them
apparently coming from a mountain bluebird. The nest measured four
inches in greatest diameter and three and one-half inches in depth; the
cup was only one and three-quarters inches wide and one and one-half
inches deep. The empty nest was collected later in the summer and is now
in the park collection (CLNP 632).
The other "find of the year" was the
discovery by Mrs. Stine, wife of Ranger J. Francis Stine, of a nesting
nighthawk about one-third mile southeast of the Lost Creek Ranger
Station (Stine and Stine, 1954). The two eggs were found on the ground
in a tiny clearing from which the pine needles and pebbles had been
pushed aside. The site was a few feet from a small group of lodgepole
pines, typical of that relatively open woodland. Discovered on July 18,
the eggs hatched a day apart, on the 27th and 28th. By mid-August, the
two downy young could still be found by a careful search of the area
within several hundred feet of the nest.
On July 19, a pair of violet-green
swallows, Tachycineta thalassina (Swainson), were seen entering
the same cavity in one of the Wheeler Creek pinnacles that was evidently
used in 1953 as a nesting site. Mountain chickadees, Parus gambeli
Ridgway, nested in a cavity at the top of a four-foot mountain hemlock
stub in the South Entrance utility area. On June 30, several young and
one of the adult birds were found in the hole. The parent made no effort
to escape but showed its agitation by hissing and pecking at the wall of
the cavity. A red-breasted nuthatch, Sitta canadensis Linnaeus,
was seen on June 23 carrying fragments a wood out of a hole twenty feet
up in a dead mountain hemlock near Duwee Falls.
Western tanagers, Piranga
ludoviciana (Wilson), were again abundant in the vicinity of Park
Headquarters and were especially numerous around the Lost Creek Ranger
Station -- until early August, when they became much less noticeable. An
earnest attempt was made to locate a nest, since one has never been
found in the park, but observation of females and singing males produced
no results in this respect. While searching in the vicinity of lower
Munson Meadow on July 12, one male was observed pursuing another,
suggesting territorial behavior. On the 14th, a half-mile outside the
south boundary, a pair of western tanagers were seen going to what
appeared to be a nest in a dense tuft of needles at the outer end of a
ponderosa pine branch about twenty- five feet above the ground. On
subsequent visits, however, neither bird was seen. Three of four
nearly-grown young tanagers were observed while being fed by a female
near Castle Crest Wildflower Garden on August 7.
Other records of juvenile birds being
fed by parents during this summer are: a gray jay, Perisoreus
canadensis (Linnaeus), at Cold Spring Campground on June 23; several
ruby-crowned kinglets in the lodgepole pine forest a mile northwest of
Lost Creek Ranger Station on July 19; three hairy woodpeckers,
Dendrocopos villosus
(Linnaeus), near lower Munson Meadow on July 23; a Steller jay,
Cyanocitta stelleri (Gmelin), at Annie Spring Campground on July 28;
and an olive-sided flycatcher, Nuttallornis borealis (Swainson),
being fed a large dragonfly along the Lake Trail on August 11. With the
exception of the last, all of the birds were actively following the
adult.
References
Farner, Donald S. 1952. The Birds of
Crater Lake National Park.
Lawrence, University of Kansas Press. ix, 187 pp.
Stine, J. Francis, and Mrs. Marcella
Stine. 1954. Lost Creek Ramblings. Nature Notes from Crater Lake
20, pp. 18-20.
Wood, Robert C. 1953. Nesting birds.
Nature Notes from Crater Lake
19:31.