Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Doug Bell
1987
Catalog
172277
DAB Larus occidentalis NNN
136 Green Rock, 2 mi. Trinidad Head
Location: Birdrock, Trinidad Head, Humboldt Co. CA.
Date: May 27, '87
+ sedimentous ova
sex ♀ 14 ova ≥0.5cm + 1 yolk 3.18 cm & 1 egg (soft membranes) in oviduct
(no shell)
Wt: 1160g Fat: Light
Winglength Left: 40.5 cm Chordal
Primary length:
10: 28.7 cm 7: 26.4 cm
9: 29.1 cm 6: 24.5 cm
8: 28.5 cm 5: 23.4 cm
Tail: 15.7 au trace pigment in shafts
tarsus: right out: 5.79 wid: 6.04
5.91au Toes in: 4.48 Hal 0.57
headlength: 12.09 cm
Bill length: 5.65 cm post wars: 3.53 cm
Bill width: 1.27 au
Bill depth: Gonys: 2.02cm Ant Nares: 1.98cm
Post Nares: 1.86cm
Brood patches: 3
Bill color: 10 YR 7-10
Eye ring color: 10 YR 7-10 some gony color in rear corner
Irides: 5Y8-2 very little pigment diffuse in lower 1/3.
Legs: 5R8-2
Remarks: 2 frozen + 1 EtOH vial. Stomach empty except for a few small stones + mollusc shells.