Field notes, v1560
Page 27
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.