Galapagos field notes, v579
Page 281
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
P. De Benedictis 1964 Feb 17 Pinta Suarez, Espanola (Hood) Island, Galapagos this nss, one of a pair of very excited Certhides, which were near the net, flew in and another Tropidurus got entangled in the lower tier. I managed to get everything out and when I got back to camp I caught a Dromicus going under the box with the stone on. Spent the rest of the evening skinning the mocking, which had already (belly) attracted flies (removed as many of its eggs as I could). One bird near the net I followed for some time. It walked a long, moving 1 to 3 feet at a time, then stopped, looked down, and would flip pebbles aside with 2 or 3 side to side movements of the bill (a much less often) merely pick up something from the ground. It was quite successful, and captured several small beetles. Once this it moved a 150+ gm. rock on a pivot about 2 inches [illegible]. The accomplishments of the Corvictus are even more marked, however. A 7 plumaged bird with a light bill I watched turned over a [illegible] gm. rock which seemed to be resting flat on the ground; the rock was somewhat spherical but still must have required some effort to overturn. It kicked a 36 gm rock about 2" away, 74 off the ground at the highest. It seemed to be taking [illegible] grass stems which were covered with gravel. Another bird I saw looked like it had the root with loose grass stalks. It had much too trouble with this, moving the stem with the tarsi and at its angle of the torinuar, and holding the