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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1980 Ronald L. Mumme
Melanerpes formicivorus
Hastings Reservation
1500
25 Jan Start watch 1345. 1415, ♂493 (Blue/metal) chasers ♂297 (DBlue, c) and ♀435 yel-Blk/yel-wht also around. Also ♂492 M/Blk.
1505 all 3 ♂♂ harrit mob a ground squirrel in the granary. Birds moving acorns around a lot,
and it looks like they may be harvesting the last of
the live oak acorns from trees along Big Creek. The
bad news is, where is ♂298? Seems 7ike I should
have seen him. 1545 end. Copulating kestrels here.
30 March Swinging by here 1015, ♀435 chasing NB♀ intruder
→ (a data point!) ♂297 also here. Coopers Hawk calling
from Haystack area. ♂297 chases rathatch from granary.
→ Another data point! 1040, ♂297 chases Downy
Woodpecker from granary! End 1045. 1110, from 1800,
I saw ♂297 chase Downy's from granary twice more,
yet two more data points!
21 April A check of the holes here produces nothing.
25 June 0930 New nest on side of School Hill 4 babies, one
small egg. 988 cm high (9.88 meters) angle
-20°
30 June Roosting, ♂297 alone!
3 July Roosting, the birds slipped in quickly, but I think it was ♂297
23 Aug Start watch 1520. Coopers Hawk (imm ♂?) shows up
briefly. These guys are out of acorns, so they may
be tough to track down. @1600 E~1
24 Aug Start again 0815. 0915. Zero! Maybe later.
31 Aug Arrive 0930, Birds! In fact, I see a bird I read