Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1983 R.C. Numme
Melanerpes formicivorus
Bianca
17Jan ** GROUP UPDATE **
① 9871 (9NB) died of unnatural cause 04Oct1982
② Juvs. 764,765,766 NSA B 29 May 1982
③ J.763 disappeared 23 July 1982 ± 2 weeks
Lastseen 27 June, gone by 18 Aug
4 Jun Watching here 1230, after Walter reported the collapse of
the main Black Oak granary tree. However, I still can
find ~100 acorns stored in a dead limb of a Valley Oak
40m down the ridge, near the very tall, spindly Valley Oak.
1305, success. A 9NB and a 8NB definitely still
here. First picked them up on the border of
the woods between Bianca & Black Oak. Saw the
8NB fly to the knoll VO, then the 9 fly to the
granary very purposefully to chase a Plain Titmouse.
She was joined there by the 8NB.
16May Nobody in any holes, though birds + acorns appear to be
present
23May Nobody in any holes 1430
4 Jun Nobody in any holes
24 June Watching 0740, 0900 OK. One 8 + one 9, both
fairly surely (but not positively) unbandeD. No sign of a nest,
though I did see the 8 holding an entire acorn for a few
moments. I guess they still have a few acorns left.
9 Oct 1045, karrits + a good number of stored acorns
(Golden Oak + Black Oak) indicate that Bianca is occupied.