Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Richardson 1937
Barley Camp, Warner Mts., 14 mi. SW Abell, Lake G., Oregon.
June 8, 1937 - Collecting and observation were done
mostly at the lower edge of the forested
area, where sagebrush occupies much space
between isolated or small groups of firs
or junipers. Such a habitat is probably of
particular advantage to certain species of
birds: Green-tailed Towhees, breeding typically in
sagebrush areas, use the trees as lookout
and singing perches; Fox Sparrows may often
nest in close proximity to trees (aspens, pines -)
though they typically forage in adjacent sage-
brush or open areas. Sapewchers drill the
Western Juniper often; Sparrow Hawks seem to
prefer such habitat, perching or nesting in high,
isolated trees; Steller Jays, though found
in the forest also frequently pass from one
large isolated tree to another and may forage
on ground between.
Woodpeckers are very abundant and are
perhaps the most fully represented group of
birds in this region. This may be explained
by the variety of trees outing both sapewchers
and woodpeckers, abundant insect food's,
natural conditions as to dead stumps or trees,
a partial combination of Upper Sonoran Transition
and Canadian zones, with (apparently) fairly
mild climate temperature).