Field notes, v1560
Page 123
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Richardson 1937 Red Crossbill (Loxia curvirostra) June 8, 1937 Fort Warner, North Mt, Warner Valley, Oregon Though this species was seen and collected in the Warner Mts, it seems very abundant here. This may be because of the very limited area with Yellow Pine & a consequent concentration of the bird. Several spots where these birds seemed consistently foraging were observed. Many of the cones, the new (just opened) ones, were completely without brackets leaving just the core. That this was not the work of squirrels was obvious as birds were seen working on the cones partially denuded, and the works was evidently not that of a grouser as bracts were broken off leaving many fibers. Cones seemed typically attacked on the side first - though the starting point probably depends more on the most convenient perch - either on the cone attacked or an adjacent cone or branch. June 14, 1937 East Lake, Painted Mts., Oregon - This species is the most abundant of all species in this region - a region of Lodge-pole Pine and Hemlocks with practically no surface water and vegetation. Large flocks (up to 500 aves) of the birds fly over quite often and have been seen and heard feeding in the hemlocks. The seeds of