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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
1982 R.L. Mumme
5a
Melanerpes formicivorus
Lower Haystack Nest Record
21 April 9523 lays 1 egg,
25.3 x 20.3 9523
thrown out by 9524 (see notes)
asymmetrical air cell
22 April Opened hole, 0815;
hatched
① 26.4 x 20.6 (9523? )
2 eggs
asymetrical air cell, calcium chips on shell
disappeared ② 19.7 x 16.1 (9524? )
runt, yolk present.
23 April Checked hole, 0815
hatched
③ 26.1 x 21.0 (9524? )
2 eggs fresh, plus
calcium chips, air cell way off center
hatched
④ 26.4 x 20.4 (9523? )
calcium chips, air cell slightly off center)
24 April Checked hole, 0615, 1 new egg
hatched
⑤ 26.6 x 21.3 9524
(9524 in hole 0540-0605) air cell slightly off center
Checked hole 0730 1 new egg
hatched 7 May ⑥ 25.9 x 20.2 9523
(9523 in hole 0710-0715) air cell slightly off center
25 April Checked hole, 1700 hatched 7 May ⑦ 26.6 x 22.0 (9524)
legg new
air cell way off center, calcium chips
26 April Checked hole, 1300 hatched 8 May ⑧ 27.1 x 21.5 (9524? )
1 new egg
air cell slightly off, calcium chips
26 April
29 April Checked hole, 1245
8 eggs clutch complete
6 May 1715, Checked hole
4 babies (from eggs ①, ③ ④ +⑤)
5 had just hatched... Young still attached to membranes
runt egg gone ②. Eggs ⑥, ⑦ +⑧ all have a chance
7 May 1345, Checked hole
6 babies. 2 new from ⑥+⑦
from egg 5
Egg ⑧ present, not yet hatched.
11 May ① BIK ② DBlue-yl ③ P ④ WHT ⑤ Bluing NB ⑥
Nest check 19.5 19.2 19.5 19.5 12.0g 6.0g
O800 BlueLL Blue RL Blue RL Blue RL Blue Rwing no mark