Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1973
Pomarine Jaeger
Stercorarius pomarinus
Sep. 15 San Diego offshore boat trip: 10 ads. + at least 10 immatures -
there were probably 20 more imms. we could not say were
either Pomarine or Parasitic but most were probably
Pomarine.
Sep. 30 Eureka boat trip: 10
Oct. 6 Monterey Bay boat trip: 20 (15 ad, 5 imm).
Oct. 7 Monterey Bay boat trip: 3
Sep. 22 Monterey Bay boat trip: 0