Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1977. Walter D. Koenig
Melanerpes formicivorus
Arnold !
Hastings Reservation
8 October
945. 15' net up in main granary.
1315. I hit the jackpot! 2 unbanded ♀♀!! I processed them as
#422 and 423, then released them together. They both flew off
at slightly different angles but after a brief stop both flew up to
the top of the large VO perch tree just up from the granary where they
peaceably greeted 1-2 other birds. Since there was no chasing-
at all during the next several minutes, I can be very
optimistic indeed about them indeed being the 2 formerly unbanded
♀♀ living (and greeting) here.
24 October
920. Several birds over towards the "Top tree" (the Valley Oak in
the center of Al-UA2-LA2-Bianca-Blk Oak) were from here. Seen
for sure was ♀ M/LB-Red #422, who flew off over to Al proper.
The top tree itself, however, still seems to be inhabited by a
flock of unbanded birds picking acorns and occasionally chasing
one another.
14 November
930. Bird inside the nest hole
3 December
1530. " " " " again!
18 December
Counted stores: 3529.
31 December
The toll of the recent storms here was one of their storage limbs;
not their largest, but one with 2 snags dead limbs and a fair
amount of space. My guess is that they lost in the vicinity of
500 to 600 acorns and probably 1000 holes. Some looked like they
had recently been pecked into - possibly they have been using the
stores in the downed limb as much as possible.
I took a sample of 100 acorns - 35 from the downed limb. No
birds were seen.