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.