Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1985 Welter D. Koenig
Melanerpes formicivorus
Lower Arnold Z
HNHR
14 April
1620. None seen in any holes.
**Group Update**
7783. Last seen for sure on 4 April 84, I may
have seen her on 12 Feb 85; now may still be
here...? needs checking; leave for now.
9939. Last seen 21 May 1984, gone by 19 Feb 1985 → DA ⚫ 0 Oct 1984 ± 4 months.
Two new ub♀♂ filled this vacancy, apparently.
8698. Became a breeder? with the disappearance of
7782. " " "
29 April
1650. The new hole in the dead burned Blue Oak is it: there are
7 eggs + 1 newly hatched baby → hence, 2 99 certainly laid
here. Since only 1 is listed, we should definitely watch
here! "Clutch size" was obviously 8.
It turns out that Missy thought she saw 2 ub♀♂ here last
time, so almost certainly 7783 is gone, having been replaced
by these 2 (see notes above, 14 April).
1 May
(500). Checked the nest. There are only 3 babies and 5
unhatched eggs. 2 had clearly developed but died as embryos; 1
of these had possibly begun pipping. The other 3 had failed to
develop entirely from the looks of it; 2 of these had small dents
in the shell, possibly the result of some ill-timed pecking on
the part of someone.
4 May
715. Set up to try and catch birds in the nest. Trapped a ♀
but she flew out another exit!
24 May
Tried to net in front of the hole but no luck. Then at 1107,
I checked it: empty. A failure. We then looked around