Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1980 Walter D. Koenig
4
Melanerpes formicivorus
Finch
(14 July) definitely the remains of 2 individuals: the first was a
newly fledged baby whose 1º were still actively growing
out. This is also supported by Sandy's next watch, where
she saw 2 babies looking out of the hole whereas during
her last nest watch there were 3 (this was on the 12th).
j614 seen
15 July
The most developed of the babies (j614?) was the one missing
today. Since they were banded 10 days ago, fledging
was likely, and I presume this to be one of their babies
from the 2nd nest (3 were very close in development, so we'll have to wait
to be sure about who it is).
As for the 2nd bird, it was not a young individual.
Primaries 6-9 were intact from the right wing; all 4 were
fresh (newly molted?) and the total length of the 6th
was 133 mm, putting the bird well above the range of
1st yr individuals (~125 mm) and even longer than the
average adult (~129 mm). Furthermore, the 1º were
blunt, further suggesting an adult. During her nest
watch, Sandy saw ① 863, ② 866, ③ 8282, ④ 9500, and
⑤ j540; we went back out at about 1500 and
after looking unsuccessfully for more remains watched
for ~20 m and saw, in addition to the above 5 birds,
⑥ j541 and ⑦ j543. Thus, the only possibilities are
8501, j542, and 9293. The 1st is unlikely simply
because he hasn't been seen at all around here since
May (at least at the nest). The juv. is unlikely because
he really couldn't have so long a set of 1º this early.
Thus, the most likely victim, supported by her absence.