Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
R. Richardson 1937
25.
1 mi. S East Lake, Pendina Mts., Deschutes Co., Oregon
June 14, 1937 - Siskins and purple finches were observed today coming to a pool of water in the road to bathe. Perhaps hunger observation would have shown them to be drinking as well. Such bathing habits are of interest in that this man-made pool offers, apparently, the only bathing place in the entire region outside of Pendina and East Lakey - probably too distant to be considered. The present atypical rains and such a transitory bathing place seem to indicate that bathing is not essential to the well being of birds of the region. On the other hand, the paucity of birds may be explained in part by the normal lack of surface water - that birds can bathe in the rain seems quite true, but following drying or sunny weather may be requisite.
The feeding together of crossbills and siskins is of interest in the light of their probable phylogenetic relationship, and especially since typically closely related birds have quite different forage habits. However, it was not determined if siskins opened their own Hemlock cones or perhaps gleaned seed from cones opened by crossbills.