Bird Notes, Part 2, v659
Page 301
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
fell to the ground, but at least one lodged in a crotch. (The live oak, which has very dense foliage, has its inner twigs beneath the canopy," shade killed". In the course of time these drop off, but they may persist for years. They become very brittle and at a certain stage may be easily broken. The smaller ones form a large proportion of the main structure of the thrasher nests at this place. They are either broken off or picked up from the ground. Being, as a rule, crooked, with numerous small forks, they make a strong structure even when in a rather loose mass, as in the thrasher nest) B calls loudly as I leave. I left in about 5 minutes. When I was about 20 feet away from the tree Brownie called twice in rich tones and in full voice. ( I do not deduce anything from this!) It was like the opening phrases of the song of the Black-headed Grosbeak, but deeper. I would not call it an im- itation. 10:45. At 10:00 I went to the glade. Both birds came at once, both using the same phrases which I cannot approximate closer than to say they were little, thin, high-pitched, drawn-out squeaks ending with deep gurgles. (Again illustrating the tendency for both birds to switch to the same phrases simultaneously) I gave them both worms--little competition between them, other than not very strenuous efforts to get the worm first . Greenie at one time could be plainly seen trying to focus both eyes on a worm in the tip of his own beak. It appears that he can do this. At such a time it is quite evident that the eye-balls are not spherical. They both climbed up the old Tendency to use same phrases by B&G. oak and three-quarter song came from it. Then several loud calls: latest yer-r-rk--yer-r-rk, be-voor. By kæmt precedent, they should go next to the "dorm" (dormitory tree). I waited for a quiet interval and then went there. Sure enough, Brownie six feet from her night perch *+ arranging loose twigs aimlessly about 9 feet above the ground and 10 feet from my head. She then "rested" and answered when I talked to her. Then over to her nightwig with more moving about of loose G looks cross-eyed at worm. Eye-balls not spherical. Calls. B again "nesting" *Later measured--10 ft.