Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cogswell
1949
Puffinus balleri
July 4-
Pt. Pinos, Monterey Co., Calif.
A single individual seen repeatedly
(or different ones?) from the N. side of
the Point about 7:00 - 7:30 PM. Its white
underparts, light gray back, dark
brown flight feathers & upper secondary
coverts and dark tail all noted.
The light tone of its upperparts
was very noticeable in comparison
with the dark [illegible] of the abundant
P.griseus & even with the dark
upperparts of P.opisthmelas. In
size it was compared directly
only with P.griseus, & seemed
but slightly smaller.
It was seen first about 7:00 PM,
& thereafter at circled around for
some time to the N. of the point.
when flapping against the wind
it seemed to have about the same
speed of wing stroke as P.griseus,
but it sailed higher between
flap series - sometimes even
"hanging" on the breeze at 15-20
feet above the water (something P.
griseus never seems to do) for several
seconds. Going downwind it seemed
to travel less rapidly, but with typical
shearwater grazing of the water surface
between swells.
It is definitely the same sp. as I saw
in the central Pacific commonly in Nov.
of 1945 - easily picked out because
distinctly marked.