Doug Bell 1988 Catalog 172306 306 Larus occidentalis occidentalis at Cape Mendocino Location Sugar Loaf Rock Humboldt Co, Calif. Date 25 May 1988 sex ♀ Yrva > 0.40; δova > 0.20 cm Weight 940g Fat Moderate Winglength (right): 40.6 Span: 139 cm Pr. length 10 28.0 7 26.8 9 28.7 6 25.5 8 28.0 5 23.9 Tail length : 15.2 Tarsus (right) 5.62 Tcs - in: 4.21 mid: 5.55 out: 5.47 clyx: 0.54 Head length: 11.72 Bill length: 5.10 post. nares : 3.22 Bill width: 1.10 Gape: 2.17 Bill depth Gourys: 1.90 ant nares: 1.85 post nares: 1.72 Brood patches: 3 Bill color um: 10YR 7-10 Spot: color 14 lm: 10YR 7-12 Eyering color: 10YR 7-12 Irides: 5Y8-6 no pigment Legs 10 RP 6-4 Remarks Shot in beach. Stomach full of fish, otolith awed - medium-size fish. 2 frozen tissue meals, segment worms in mesenteries - moderate ? alulae: Rvt LW-; P 10-1.