Acorn woodpecker species accounts, v4462
Page 383
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1994 M. Stanback M. Formicivorus Gazo HNHR 2 Apr J. reports ≥ 1500 daughters (HF - the one's we caught) at Gazo going in & out of holes + Fighting with the Gazo 99 (!). 99 painted. 4 Apr 0830-0910 Power struggle. Saw all 3 1500 HF. They're hanging out in the Westernmost of the big Gazo trees, along with Gazo BM 1808. The Gazo HM 2311 is in the eastern tree (main granary) with at least 1 NOBA 9. The 1500 99 are very interested in the typical! Gazo nest hole. They seem to have divided the granary trees down the middle - no chasing unless crosses the line. Very weird. Katy offers the hypothesis that lack of a single central granary could lead to this sort of confusion - which is exactly what happened last year - the Simple Hypothesis. Walt goes back this afternoon + verifies BM w 1500 99, HM w 2 NOBA 99, + no sign of Gazo 99. K+J Then roost watch. 3 birds into "nest" hole, 3 birds into the upper of the 2 low holes down in the low tree. Alas, I must forego the ArtT ambush to get these guys. If only Walt were here. 5 Apr Ambush! I pole the low hole + catch Gazo BF along with the 2 HM. Bleed, take J8 back for lap (only saw anything one - boo hoo). Returned J8 later, whereupon the joined the Fray. [P.S. Birds woke at 0515]