Acorn woodpecker species accounts, v4460
Page 51
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1988 M. Stanback M. Formicivorus Hay-Blom HNHR Dec 87 Acorn Count: 8760 2 Apr 1500 Hellbed holes - nothin. 3 Apr 0745-0820 Watched H-B For nestiness (From Far Knoll). They (sev birds) spent alot of time in the 87 spring "suspect" tree (uphill From granary) One bird spent ~15 min chasing a steller's jay around the tree (esp the W side) Another ACW joined briefly, and at one point they chased a starling. 5 Apr 0900 1 egg - couldn't reach it. Old door Falling apart. Needs new door. Should they be tossing? 6 Apr 1430 Cut new [illegible] door. No eggs inside. [Old webbing] 8 Apr 1430 No eggs - I sure hope they've just tossing. 15 Apr 1230 No eggs - back to the drawing board folks. 17 Apr Bird tapping in Fenceline hole 18 Apr Bird in Fenceline hole 20 Apr 1240 Checked Fenceline hole - 8 opaque eggs. 22 Apr 0945 Not hatched yet (tho I should have counted) 23 Apr 1300 Not hatched (counted only 7 eggs, I'm pretty sure) 25 Apr 1200 Predated - no eggs (or even pieces - snake?) 4 May 1800 4 Fresh eggs (#1-4 L1 is Freshest) in webbing hole LED 7 may new record! 11 May 0700 10 eggs. Wow, this will be great brood reduction! 18 May 0645 RL=5.6 LL=5.15 RW=4.2 LW=5.65 B=6.8 egg 2 inf (removed), egg 3 not yet hatched, plus 3 other unhatched None pipping (well, maybe one was) 19 May 0900 RL=9.6, LL=9.4, RW=7.05, LW=9.7, B=11.0, BL=5.95, BW=4.3, WL=4.4 20 May 0740 The critical day for brood reduction. Gopher snake in nest.