Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1978 Walter D. Koenig
Melanerpes formicivorus
Haystack-Blouquist
Hastings Reservation
16 September I must admit that one other odd thing happened here yesterday
which I didn't record: I walked over to the nest hole and
checked below it (thinking I might find a trace of more lost
nest fledglings) and instead found a living, furry, apparently
newborn woodrat. This seemed suspicious enough that I
returned this afternoon and opened the hole, where I found
another, identical, but dead baby woodrat (identification is still
to be checked, however) but otherwise no indication of rodent
inhabitation in or at the bottom of the hole. Out of the several
hypotheses, two are particularly likely: 1) the woodrat, for some
reason out of a place to live, ran in hole and gave birth; then
left for some reason not related to the birds. 2) The rat, with a
nest elsewhere, found the hole, decided to move her babies in,
either found woodpeckers inside or was confronted with them
later on, probably brought two and then gave up. One was
subsequently tossed out by the birds (alive); the 2nd remained
inside and starved.
It certainly would be worth checking to make sure these birds
are still roosting here.
22 September 850. Watching from hide. Birds, by the way, are not roosting
in the nest hole (are instead roosting in the old granary on HNHR).
900. Several adults are chasing jays from the roost tree.
903. ⚫⚫⚫ 0r-Yel/or #171. No storing yet, but lots of inter-sp. chasing.
③♀ Yel/Blk #176. ③ Jrt-Blk/Wn #449 playing hard to see off on the side.
④♀ Wn-DP/or #247 plus ⚫171 now in granary working stores.
⑤ j m / Da-la #45D(! yea!) over on the side. ⚫⚫⚫ Wn/Blk #173.
925. The birds (up to 3 at once) are really chasing those jays.