Acorn woodpecker species accounts, v4451
Page 265
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1994 1995 Walter D Koenig 2 Melanerpes formicivorus Black Oak HNHR 11 April 900. Quite a few stores left. No birds in any of the known holes, however. 1130. Second time around: Bird in old nest hole, relatively low in central Valley Oak facing back toward Arnold Cabin. Went up and reopened the hole, finding 3 fresh eggs (marked 1-3). 15 April 1100. Checked nest: 4 eggs. Measured: ① 24.7×17.9 ② 26.0×17.4 ③ 25.5×17.6 ④ Laid 12 April, presumably 24.7×17.1 24 May Ceranamy still loaded. 1530. Based on watches by Mark & Jenny, as well as a brief look myself, there would appear to be a new group in the "Bianca side" area here, going over to the forest on the Bianca side (see map on back). I watched a very nice-looking hole in the trap tree for a few minutes but no sign that it's a nest, or at least that it's now active. Apparently there are several NOBAs in this group, which I will call SIBO ("sibling" of Black Oak). [=Phobo] If nothing else, this hole is a very likely voost hole. Birds definitely hang out here. 8 June 1600. Checked the 1st nest hole, where birds had been lurking on occasion, but it's empty. 1995 21 April 1600. Bird in hole (same as last year's): 4 eggs, incubated. I marked them and measured one (marked #1): 24.7×17.4 mm. 26 April 1430. 4 babies, 3-4 do, Plenty of stores still here. 16 May 1130. Banded & bled the 4 kids here. Plenty of stores left. 21 June 1400. No sign of a nest, but still some stores.