Bird Notes, Part 5, v662
Page 209
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Transcription
B's saliva flow. to see a large, crystal-clear drop of fluid suspended from the lower side of the upper mandible at the highest point of the arc. As he bent his head forward to give the worm to one of the chicks the drop ran along to the tip and went with the worm into the chick's gullet. This is the first time that I have seen the sa- liva inside of his bill. With the next worm the same thing was repeated, and with the next (the last). This copious flow of saliva when there are young in the nest has been recorded frequently in these notes, but, heretofore, it has been observed either as a drop at the end of the bill or as being splashed upon me. How Rhody divides his time. Rhody, again on the chimney top for an extended observation and preening period, has divided his time since about 7 A.M., roughly about equally among his three (at present) preferred locations: The cage, the nest and the chimney. He has not yet eaten the mouse. Chimney now favored. The chimney is now preferred as an observation post above all others. Next in order is the observatory roof. At the nest he "incubates" most of the time, but works a little and besides it also commands a wide view, restricted in certain directions. Lining nest. During the afternoon he added a batch or two of lining mater- ial--pine needles. It is a curious fact that, although he could easily gather these needles in large masses, he picks them up one at a time until he gets a load. Departure from routine. As a departure from his usual custom recently, he did not make a long session with the magpies his last order of business for the day, but at 7 P.M. was found in his roost in the oak on the west lot. Factors influencing R's selection of roosts. It seems strange that, with all of his carefully selected nest sites and comfortable nests, he does not use any of them to sleep in during the night. It is evident that none of them meets his specifications for a roosting place. There is only one feature that differentiates his three known roosting places from his 5 present nest sites completely and that is, each of his three roost places is directly exposed to the very last rays of the setting sun, whereas all of the nests are in shadow before the sun sinks below the western horizon. This may not be, and probably is not, the determining factor. The selection is probably due to a com- bination of conditions. In general, the roosting places are more isolated, have more open territory about them 3 larger and more accessible landing fields and these fields are to the west. May 22nd. R goes to roof early. At 6:55 A.M. the shadow of a large bird passing across the bathroom floor, followed by a light thump on the roof overhead, announced Rhody's progress toward his lookout post on the chim- ey. He occupied this post for 50 minutes, booring once. 8:30. He is up there again, just now: rattling his beak. Up again. B now accepts me at nest again. Brownie has reinstated me as an acceptable provider of food at the nest. At 7:15 neither adult was there, but Brownie soon came unhurriedly, sat on the edge of the nest and took worms, most of which he ate himself. The youngsters are taking an inter- est in outside affairs, stretching their necks to peer at the new world. One of them uttered a "fear squeal" when B arrived, but had not shown fear when seeing me approach a few moments before. This accords with previous experiences.