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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
1983 R.L. Mumme
Melanerpes formicivorus
Road 1
17 Jan ** GROUP UPDATE **
① ♂577 + ♀806 found DOR 25 Aug 1982. [by WDK]
21 March Watching, 1020: 1110, Complete census: ♂496
♂294, ♂269 ♂383, ♂578, ♂579, ♂580, ♂672, ♂804
all seen well. Only other thing of note is that
the 81-82 nest limb (Black Oak) broke below the
nest hole, at the lower hole that was never used.
Fortunately, the nest looks OK.
31 March
As it is definitely becoming spring (warm, mostly sunny
AM), I start a watch from PO Hill at 0930, looking for
signs of mate guarding or interest in holes. I notice that
a top chunk of the 1° granary has broken off, right at the
spot of the upper of the two roost holes there.
1040 Doesn't look like much is happening. Didn't seem
like ♂486 was showing much interest in ♀269. The birds
were hanging out a lot around the Black Oak nest hole (eating
catkins, mostly) but nobody looked at the hole. Still,
it's possible that they could be interested in the low hole in
the sycamore, since I couldn't see it.
1130, After seeing Rd 1 birds hanging around in a sycamore
adjacent to the creek (Arnold side) [illegible] m downstream from
the bridge, I find what appears to be a fresh hole start
Not too high, in a live part of the tree, with a nice
live branch below for standing on. Will have to
keep an eye on it. Unfortunately, the hole faces
South, not visible from PO Hill