Acorn woodpecker species accounts, v4442
Page 105
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1976 Walter D. Koenig 24 Melanerpes formicivorus Plague Hastings Reservation (3 September) 1976. There are other calls coming from the lower edge of Red Hill - clearly many birds are in this vicinity getting acorns. 4 September 1530. ♀️ / or #22 and a ♂️ briefly in 2º tree; birds come here occasionally (in this case the ♂️ was eating a green acorn), but are otherwise spending their time in the forest just up Chongo with the other foreign birds, where all are getting green acorns. 7 September 1130. ♀️157 atop 2º tree. 11 September 1330. ♂️22 atop Plague tree. ♀️157 and ♂️ub near upper barn, ♂️ busy eating a green acorn. 17 September 1800. ♂️22 atop 2º tree with the ♂️; a 3rd bird by upper barn. Meanwhile, 2 birds (1 a ♀️, the other a ub ♂️) were up between Red - the Hastings cabin and the water tank; their affinities are unknown. 28 September 1800. ♀️157 and a ♂️ in 2º tree; a 2nd ♂️ in the roost hole of the telephone pole. I was unable to find any stored acorns. 4 October Noticed that the rotten limb used as a nest last year and this year in the Blue Oak by the labs broke off, no doubt during last week's storm. 8 October 1045. All 3 birds were around here, storing, hawking, and trying to keep Magpies out of the granaries. ♀️LB/LB #22 seen, Also ♂️LB-ub/ub #157. To get a vague idea of maximum storage rates, I counted again, 10 days following the 28 Sept. check revealing no acorns: Plague tree: 280; 2º tree: 41; tel pole: 10; TOTAL: 331, or 33/day, or 11 acorns/bird/day. (Certainly not unbelievably high!) 10 October 1130. ♂️22 hawking atop Plague. Storing going on also.