Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1985
Mark Stanlack
M. formicinorus
R 3
Hantings Reservation
25 May 1315 entered arrive. Woodpeckers about
1330 ♀ entered nest hole
1336 ♀ stuck head out has snudge on left forehead
1337 ♀ left nest or,br,16 (♀ 1010)
Nest hole is in tallest and westernmost of
the 3 snags. Viewed from the SE
[sketch]
My guess is that birds are incubating.
1348 still no birds have entered hole since 1010 left