Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1991 Waltwd Koenig
Melanerpes formicivorus
Blontwice
HNHR
4 March *Gourp Leptate*
♂ turnover! ♂681. Last seen 21 Oct, gone by 1 Feb.
→D.A. 11 Dec. ± 6 wks.
Replaced by a new ♂NOBA. (85345)
13 April
1140. There are some stores left here, as well as at least a couple
of birds.
19 May
1500. Still a few stores here and (!) a bird in the lower
of the 2 old holes in the traditional nest tree!
It has hatchlings! 2, in fact, along with 2 unhatched
eggs, one of which looks opaque and the other possibly
infertile. (This is from peeping; the hole has been considerably
deepened.) Clutch size here was definitely 4 (shells
in nest match the 2 hatchlings).
20 May
1430. Opened the hole, put in a parasite board, and set
up an ambush. Now 3 babies + 1 infertile egg.
23 May
1115. Picked up the parasite board and measured the 3 babies:
① 17.5 ② 16.6 ③ 8.3.
3 June
815 Set up to get the ♂NOBA here at the nest.
900. ♂ in! But turns out the 2 holes are connected! Will
have to try again later. All 3 babies still here, at any rate.
4 June
915. Trying again.
940. Got him!
6 June
840. Set up for the ♀ this time (DLW). All 3 babies fine.
920. ♀ here, but very skittish—apparently they know that the
connection is plugged up with some foreign material. Moving on
& will return.
1145. ♀ feeding, but no sign of the ♂, so I let her be.