Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1991
1992
Walter D Koenig
Melanerpes formicivorus
Upper PHF
HNEUR
(30 May) The bird who was in the hole when I got there had stayed
in, even though I'd climbed up to the hole to scare
him out. I don't think I scared anybody away
otherwise, and no one else even came to the hole (even
though I could hear them elsewhere in the tree and
eventually roosting nearby).
2 June 1515. Hole completely empty! Note my roost watch above;
if indeed I keep a bird from roosting that may have been
enough to kill the nest. Predation can't be ruled out,
however.
There are stores remaining here, by the way.
14 June 900. No sign of anyone up here. So what's going on? Why
aren't they renesting?
15 July 1525. Still stores here. No sign of birds, though (except for
MPHF birds hanging out here).
1992
4 April 1340. There are just a few intact acorns remaining here in
the main gravany.
10 April 1600. Set out a feeder in the nest tree; this is a supplemented
group this year.
18 April 515. At long last, an ambush in a new hole in the nest
tree netted all 4 birds, including the ♀ NOBA. End of an
era. We bled everyone and then Mark took 2 of the
38 in to be lapped.
9 May 1000. Bird flushed from the blue oak with holes over in The little
canyon N of main PHF area; a nest?