Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Doug bell
1987
Catalog
172302
DAB
Larus occidentalis
144
Location: Sugarloaf Rock, Humboldt Co., CA.
SKELETON+
Date.. May 30, 1987
Left Wing.
Sex: ♀ 10 avg ≥ 0.45 ♂
Wt. 900g
Fat: Heavy
Winglength: left: 39.9 cm Chord: 1 x 31 cm
Primary length: 10: 28.4 7: 27.0
9: 29.0 6: 25.3
8: 28.4 5: 23.8
Tail : 15.7
Tarsus : right: 6.11 out: 5.16 in: 4.15
middle: 5.5 tal: 0.48
Headlength : 11.75
Bill length : 5.21 post. narcs: 3.26
Bill width : 1.22
Bill depth : Gonyx : 1.92
Ant. naris : 1.82
post. naris : 1.72
Brood patches : 3
Bill color : 10 Y R 7-12
Eyering color : 10 Y R 7-10
Gony pigment in rear corner
Irides : 5Y 8-4
scattered diffuse pigment lower 1/2.
Legs :
5R 8-3
Remarks: left nare enlarged towards head.
2 nails - 1 frozen, 1 stoth. Few worms
Stomach empty except for 1 small white mollusc shell.