Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1989 M. Stanback
M. Formicivorus
PIPE
HCHR
28 Mar 1430 2 birds here. they've added lotsa acorns @ 1000
Dec 87 Acorn Count: (13 Dec 300)
7 Apr 1430 On a whim I climb the 86 hole - mouse nest.
11 Apr 1340 looked for nest - no luck
14 Apr Walt reports 5 Fresh eggs in now low hole
24 Apr 0845 RL = 4.2, another egg pipping, another infant, 2 still unhat
near death
25 Apr 0845 RL gone, 2 very cold babies - one looks new and an
unhatched Fertile egg. One marked RL = 4.65g, B = 3.85g. Both
added to nest at WOLF. Egg added to WOLF also.
1 May 1030 Bivd in hole
4 May 1500 " . Climb. 1 Fresh egg. #1
9 May 1800 5 eggs
19 May 1210 RL = 9.3 LL = 8.6 RW = 9.3 LW = 4.8 B = 3.5
20 May 1210 RL = 11.95 LL = 11.3 RW = 12.1 LW = 7.0 : 3.1
21 May 1230 RL = W = 15.8, LL = M = 16.1, RW = LG = 15.7, LW = 10.2
Runt is gone - even in ideal circumstances (hot weather and a
ladybug boom) a monog pair cannot raise >4 kids
22 May 1156 w = 18.8 (10), G = 20 (10.05), M = 19.6 (9.6), r = 13.5
23 May 1150 W = 23 (11.05) LG = 22.8 (10.9), M = 24.2 (10.8) r = 14.5
25 May 1345 29.6 (13.1) 30.6 (12.95) 31.95 (12.55) 20.1 (10.7)
26 May 1320 32.9 (13.85), 34.4 (13.65), 35.4 (13.5), 21.8 (11.35)
28 May 1200 42 (15.4) 41.7 (15.5) 44.2 (15.1), 27.6 (12.65) & 36.1
30 May 1115 W 47.4(
LG 48 16.6 4.7 2.7 5.1
M 49.8 16.2 4.1 3.5
- 30.05 13.85