Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
2000
Waltford Koenig
Melanerpes formicivorus
1
3 May
1210. Opened old hole low in Tree#1 (hole#291). Eggs,
fresh: 24.6 x 19.1 (marked #1).
9 May
900. 4 eggs. Measured another one: 25.6 x 19.0 mm.
19 May
1530, 4 babies (1 distinctly smaller, but still)
OK); 3-4 do. Band ~ 6 June.
7 June
Banded the 4 kits. Lots of stores left.
30 August
Still lots of stores.
2001
4 April
1215 Bird in the (old) nest hole this morning, so I checked
it: empty but in good shape.
9 April
1330. No one in the hole but I checked it anyway:
empty.
27 April
1330. Bird in hole: 3 fresh eggs. Done?
① 25.1 x 20.5 ② 23.9 x 20.2 ③ 24.8 x 20.2
11 May
1615. Apparently not: now 4 eggs, at least one
(the 4th!?) pipping. The 4th measured 25.5 x 20.1,
by the way. All should hatch; band ~ 2 June.
Assuming they hatch tomorrow, this was a 14 days
from the last egg laid to hatching (13 days run)!
14 May
1030. Still 4 eggs!! It's not looking good
for these guys; there would appear to be a
serious problem with these eggs.
16 May
900. 3 eggs; I removed them and cracked
them open - none had developed normally.
Oh well. Hope they try again.