Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
ZIEGLER
1956
COMMON GOLDENEYE (BUCCARALIA CHANGUUA)
FEB 18 LAKE MERRITT, OAKLAND ALAMEDA CO., CALIF.
11:30 AM. ♂ & ♀ SEEN SWIMMING BY WIDELY
SEPARATION. ♀ DIVE SEVERAL TIMES &
STAYED UNDER AT LEAST 15-20 SECONDS.
WHITE (SPECULUM?) IN ♀ WING NOTICEABLE.
NO MATING ACTIVITY OR CALLING. AFTER
A FEW MINUTES DUCKS WERE SEEN
SWIMMING SIDE BY SIDE.