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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
1981 R.L. Munne
26
Melanerpes formitivorus
Low Hay
(17 May) have a feeling that ♂461 is excluding her. What's more
I again see little evidence that the birds are seriously
incubating. I think ♂307 + ♀524 have both been in,
but I certainly haven't seen any long, continuous bouts.
♀604 may be back, as I've heard plenty of garricks
early in the roost area, and saw ♂307 chase hell out of
somebody over there
0750 Yes, ♂461 is the culprit. ♀523 in the
broken tree, ♂461 flies from granary and chases her
around the broken tree, for a few seconds, ♀523
then flies to the watch tree. 0752, ♀523 "watches to
herself" in watch tree when ♂461 returns to granary.
This is all very bizarre. Why has ♂461 now had this
corn cob shoved up his ass, only after ♀523 has heaved
out 3 eggs that he (presumably) fertilized.
0800, Nest check. still 5 eggs.
18 May Nest check 1600. 5 eggs, slightly warm, although nobody
was in the hole when I arrived.
23 May Checked hole, 0830. ♀524 in hole when I arrived. Still
5 eggs. I introduce a die.
25 May Nest watch, 0855-1125. ♀523 is here, but she
is still being denied access to the granary by ♂461. I saw
♂461 "attack" ♀523 briefly in the broken tree, and perhaps
a second time when ♀523 flew to the granary. ♀523 seen only
in watch tree, broken tree, + 2° granary. Only ♀524 + ♂307
incubated during my watch. Nest checked 1145, die still present,
not thrown out within 48 hrs. Introduce plaster egg, No hatching yet.