Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1974
Harlequin Duck
Histrionicus histrionicus
Jan.19 Año Nuevo S.R., San Mateo Co, Calif: 4 ♂♀
swimming together off Año Nuevo Pt. They
all stayed very close together, interacting frequently
and diving synchronously.
May20 Año Nuevo S.R.: 3 ♂♀