Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
EASTERN PACIFIC OCEAN
35°
30°
130°
125°
120°
FIG. #2 EGS #17 16-23 NOVEMBER 1967
HERRING GULL-AGE DISTRIBUTION
① ADULT
1 NON-ADULT