Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1979 Walter D. Koenig
Melanerpes formicivorus
School Hill West Hastings Reservation
21 April
1030. A surprise! At least 2 birds here-①♂ub and ②♀m.
Both in this area, hawking on the side up above Gate.
1045. The banded ♂ flew off and greeted a 3rd bird!
1100. Now ♂ub on the far (SW) side along with ②♀ub.
Now that I think about this, I bet these are the Westgate
birds -♂ub, ♀ub, and ♂58. This makes at least as much
sense as there being a whole new group up here, especially
given that they have been almost entirely missing from
their real territory lately. Also, both these birds finally
disappeared by moseying down the hill more or less towards
the Gate. I do wonder, however- might they be roosting
up here? It might be worth checking.
1600. Returned here and fixed up the old roost hole in the
Black Oak, where my cut section had fallen out.
15 May
24 June
(Probably 13-14th day)
1330. Nobody seen here in passing.
1750. A big surprise! I flushed a bird from the Black Oak
upon arrival, prompting me to go up and check the hole
that I've previously opened, only to find 3 still juicy but
mostly decayed carcasses of AW babies whose crown
feathers were already ~1/8" long and who were thus ~15 days
old I'd guess (their primaries were just breaking their
sheaths). The soft parts were mostly but not entirely gone,
and I'd guess they'd been dead at least a week, possibly a
little longer. Thus, they may have died during last week's cold
spell (16-17 June) when many of the other nests here failed.
In any case, I removed the remains, and am now left to
wonder who is living here - the Westgate birds, as I