Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1982 R.C. Mumne
Melanerpes formicivorus
Hay - Blom Nest Record
29 April Opened high hole in PO tree, 1200 No eggs
7 May Checked hole, 1615
(4th egg probably laid today)
4 eggs fresh.
11 May Checked hole, 0850
3 eggs (!?)
marked & measured
① 25.8 × 19.5 hatched
② 26.2 × 20.1 failed to hatch
③ 26.8 × 20.0 failed to hatch
23 May Checked hole, 1800
1 nestling (~6days)
two un-hatched, apparently infertile eggs ② + ③.
8 June Checked hole, 1230:
No sign of the nestling, ♂173 dead in the nest
(See notes).
SECOND NEST