Acorn woodpecker species accounts, v4451
Page 325
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1994 Walter D Koenig Melanerpes formicivorus Bianca HNHR 4 February 1230. Counted stores: ("Site" V0) New granary: 610 } 880. Blue oak: 270 For the first time these birds seem to be taking their new granary seriously. Not bad, compared to prior years. 11 April 915. Small-scale power struggle going on here with at least 7-8 birds chasing each other around. So far only NOBAs seen, I bant only 930. ① ② Or-DB #1232 along with several ③ NOBAs and at least 1 ④ NOBA. 945 1000. Current winners would appear to be ⑤ Or-DB 1232 + 2 NOBA ⑥ and 1 NOBA ⑦ (?!). Yes - 4 birds (288, 244) would appear to be in control (only the 1 ⑧ banded); with 3-5 others off on the peripheries of the territory. * Acorns remain here in the storage facilities. 1000. I'm starting to think it may be 388 (1 banded) + 1 ⑨ who are in charge. No - There do appear to be 2 NOBA ⑩. 1005. Leaving. Things still quite active here. 15 April 2 May 1550. Bird in hole (traditional tree). 1630. 6 eggs, incubated! Measured: ① 23.8 × 18.5 ② 24.3 × 19.5 ③ 23.6 × 19.2 ④ 23.7 × 19.4 ⑤ 22.5 × 18.0 ⑥ 23.9 × 18.7. 11 May 1 June 1130. Checked nest: Totally empty! Still stores, by the way. 830. Came up with the latter to check the rotten hole: 4 babies + 1 unhatched egg: ① Yel (19.1) ② Wh (21.0) ③ Bk (18.9) ④ NOBA (13.8); eggs: 23.2 × 17.9 (looks developed). Set up a nest ambusher for the ⑤. 3 June 1450. Going for 1 of the ⑥.