Bird Notes, Part 3, v660
Page 515
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
of which he watched curiously. I could not see that he got anything to eat and left him there when he began preening all over again. This was almost a duplicate of thrasher behavior. Next I called on Bb at the oval lawn and verified the pronounced orange in his eyes under slanting light, still juvenile under direct. B's eyes are orange-brown under all angles. I suspect that a change of iris color in Bb is in progress. Since first noting the difference in Brownie's and Greenie's eyes I have kept pretty close watch on thrasher eyes, hoping to see changes actually occurring. Brownie chased Bb at the oval lawn, but not very strenuously. I do not think he really tried to come to close quarters, and while Bb was careful to keep out of his reach, and complained mildly, he considered that a 6 foot interval was sufficient protection and every time B stopped, so did he. Altogether a mild affair. During the afternoon the three thrashers and Rhody were seen often Once Rhody and the two adults were in the glade at the same time, indifferent to each other. R still has a good thirst, and a tempera- ture of 86, as it was today, causes him to keep his bill open and seek the shade, although road-runners are popularly associated with much higher temperatures. R and Bb drink together. Julio reports R and Bb drinking from the same dish and that R made his rattling boo at Bb, who was momentarily startled, but that they finished on good terms. Fox sparrow arrives. Hermit thrush. The hermit thrush seems to have taken up his winter quarters here also. Color film of RR tail feather. I tried a koda-color film on a single tail feather shed by Rhody to see if the colors as viewed in different lights would show up well. The background was a screen blackened with lamp-black. To the eye, viewing the feather in direct sunlight, the colors vary through yellow, gold, golden green, reddish purple, blue.