Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
R.K.Selander,
1952
Falcon sp.
August 22 Pie de la Cuesta, 20ft., Guerrero, Mexico -- one large
(about size of F. mexicanus) falcon flew past me in
stand of palm trees. Very light gray color all over,
almost appearing white. Very heavily built, perhaps
more so than F. mexicanus.
[illegible]