Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Doug Bell
Catalog
172404
DAB
Larus occidentalis occidentalis
317
Location Ano Nuevo Island, San Mateo Co., Calif.
Date 7 June, 1988
Sex ♀
2 ova > 0.25 cm; rest all small.
Wing length
Tail length 13.9 cm
Tarsus 5.59 (L)
Head length 11.91
Bill length 4.47
Bill width 1.13
Brood patches 3
Bill color - UM: 10YR 8/12 LM: 10YR 7/12 post; SR 5/12
Eyering color: 10YR 7/12
Toides: 5Y 6/3
pigment: 10YR 3/2 - sandy-scattered. Tunicate much lower ½ than upper ½.
Legs: 10RP 6/6
Remarks: Trapped off 3 egg nest. 1 blood meal.
Mate of 318. Eggs 317-A-B-C. Po. 10-3. Stomach empty; several worms in stomach. Alulae: RW+ LW+;
2 frozen meals (1 large, 1 small).
Weight 910 gms
Span 137 cm
Pr. length
Toes-in: 4.24 wid: 5.61 out: 5.33
Hallux: 0.47
Post toes: 3.40
Gape 3.07
out toes: 1.88 post toes: 1.75
10 27.4 cm R 7 24.8
9 28.0 L 23.8
8 27.0 S 22.6
+ LW
39.3 cm
Skd.
fat Good; but look slightly protruding