Year
Unknown
Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
H.V. Grinnell-1925
mineral, 4800 ft.
July 15
four foraging young, about as big
as hen's eggs, came from behind
scratching and pecking. When the
nearest was within eighteen inches
of my knee the unseen parent, some-
where behind me, clucked a different
note and the chicks retreated
cautiously, to be led quietly away
by the parent. I am sure that
there were more young in
the brood than I saw.
Just before 9:00 a.m. Richard
and I sat down under a bush
a dozen feet from the chickadees
nest to record feedings which
were as follows:
8:59 in with food; out at once.
9:03 " " " " "
9:07 " " " " "
9:08 " " " " "
9:10 " " ; stayed 30 seconds
9:11 " " " 7 minutes
9:18 " " both parents out, one with excrement
9:21 " " ; out at once.
9:22 " " " "
9:25\frac{1}{2} in " ; out with excrement
9:29\frac{1}{2} " ";