Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
T Richardson 1937
9.
Month 20-mile Creek, 9mi. S Adel, Warner Valley, Oregon
May 31, 1937 - Collecting and observation were
carried on in the area of high sagebrush
at the broad mouth of the canyon and
also in the canyon proper. The weather
was clear and hot today in contrast to
wind yesterday. On such a hot day the
birds seem to become quiet vocally and
actively, quite early - say by 8 or 9 A.M. This has
seemed particularly true of the juniper
habitat perhaps because there is as more definite
association of birds with habitat here, and fewer
tas birds.
Barley's life-zone map of Oregon would make
this region (Warner Valley) Upper Sonoran. This
is probably correct in part if the predominate
Artemisia and Lophopyrum (?) may be taken
so indicator, especially as they are high (up to
8' in places). However, this seems to be a
higher "type" of Upper Sonoran than that around
Berkeley, Claremont etc. - higher in the life-zone
series. This seems true as indicated by extreme
temperature (snow even falling at end of May)
and a comparatively late breeding season.