Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1977 Walter D. Koenig
4
Melanerpes formicivorus
1500 Hastings Reservation
(7 March) There are several other birds here also.
Stores here are effectively zero (!) [I could see 2 whole
acorns in the main tree]. Evidently the "residency" of all
the School Hill birds down here has wiped them out fast-
indeed. Which leads me to wonder, among other things, as to
why banded birds in a new territory don't chase off their
old group members?
18 March
1700. There are no birds anywhere here that I can detect.
Has this group abandoned and returned to School Hill?
19 March
1200. There are now 3 birds at least here hawking; ③♂YU#194
seen. A banded ♀ here also. ②♂RLLW#195 here.
1215. The ♀, who is now in tree 2 and checked out the hole
in tree 1 a few minutes ago, is unbanded as best as I can tell.
1220. ④♂M/Yel #296 hawking in tree 1 (1st-yr School Hill bird)
1225. One of the ③♂ is digging into an acorn over in tree 1
(either they still have a few stores or they've brought some
down from School Hill).
1230. ⑤♂Myor #88 here. ♀ in lower Sep Side.
Perhaps there is hope for the group yet. The ③♂ are o.k.
and even though they occasionally "disappear" from here I
can see no reason to believe they're going back up to
School Hill. Some School Hill birds are still coming down here,
however, and perhaps the ♀ub is one of them. I tend to
suspect not, however, and that she very possibly may stay
for good.
20 March Having heard lots of activity and calling (inc. garrick
calls) I came over and began watching about 1150.