Acorn woodpecker species accounts, v4442
Page 421
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1976 Walter D. Koenig Melanerpes formicivorus New School Hill (12 January) I returned at dusk to watch roosting again. At least somebody did roost in the nest hole, but several birds, including jwrs #193 and #195, roosted in the hole in that small tree up toward School Hill "B". Just before roosting, #195 and another bird were in School Hill "B"'s former storage tree, now certainly taken over by New School Hill. 13 January 730. Only managed to catch j♀#192 in the nest tree; I don't know whether other birds managed to escape from the roost or not. She was weighed and measured and released. 25 January Florence saw several birds up here this afternoon, including j#193 and 194 and 195. 26 January I was to ambush them up at the small roost tree by School Hill "B", but the net was entangled somehow. 23 birds had been roosting here (24 January), and it will be attempted again. 27 January More entanglement; this time I scared the 3 birds out of the hole, however. 28 January I watched at dusk, seeing 3 of the babies (192, 193, 194) plus lots of other birds. Activity at dusk was focused on the 2 storage areas (School Hill and School Hill B); the latter had 3 or so birds working in it (and pre-roost mounting there) while others (3-5) were in the main storage area; a couple others were in between. Final roosting occurred in the school Hill "B" hole, the other nest hole (down from main roost hole) and the other hole down from it; also I suspect strongly that there is yet another roost in the Valley Oak at the East end of the enclosure.