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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1982 R.C. Mumme
Melanerpes formicivorus
Lambert
20 Feb Big doings here! 0830, a POWER STRUGGLE!
Heres the situation:
① 652 is being seriously challenged by a group
of 3 (I'm pretty sure) unbanded 99, and 652 Yellow/Lbrn
is losing! The 3 99 are looking very friendly with
the 8♂, and seem to have full control of the fence-line
trees. 2 of the 99 seem to lack tail spots, while the 3rd
is heavily tail spotted and has a broken retrix.
652 is limited to the broken top Valley Oak and the
fallen limb, and although this is where most of the
acorns are, she seems to be losing out.
② The 3 Lambert 8♂ are here: 88 545 and
624 are especially conspicuous, 669 seen briefly. But
also here are other Black Oak helper 8♂: 8497 M/Blk-Red
Lbrn/DBlue 546 cm-081/M (especially prevalent doing a lot of
chasing it seems) and 8689 or/white.
③ About 4 additional 9 NB hanging around as
well: TOTAL PARTICIPANTS = 15 or so. No other
strange banded 8♂, but I got a glimpse of somebody I
thought might have been BP.M (8583), so I should
keep looking.
④ The usual amount of vekating, gerricking, etc.
8♂ still showing a fair amount of aggression toward the 99.
Even saw 689 peck 652!
0950, 713 Yellow/Blk or of Black also here, but
very peripheral
1030, 652 seems to be shifting a bit to the 2nd fence tree