Doug Bell Catalog 1988 172400 Larus occidentalis occidentalis 264 Location: Alcatraz Island (Parade Grounds); San Francisco (o, Calif) 282 Date: May 13, 1988 Skeleton + Sex: & LT: 1.74 X 1.10 X 0.81 RT: 1.50 X 0.95 X 0.72 Rt. Wing Weight: 1,220 grns Fat: Light Winglength: 41.9 cm L Span 149.5 cm Pr length 10 28.5 7 26.4 9 28.8 6 24.5 8 28.0 5 23.4 Tail length: 15.0 cm Tarsus: 6.90 cm L Toes: In: 4.93 Out: 6.39 Md: 6.68 Headlength: 13.10 0.50 Bill length: 6.17 cm Post Nares: 3.78 cm Bill width: 1.51 Gape: 3.62 Bill depth: 2.23 ant Nares: 2.14 Post. Nares: 2.06 Bill Color: un: 2.5Y 7/10 lm: 2.5Y 7/10 Spot: 5 YR 6/10 Eye ring Color: 2.5Y 7/10 Irides: 5Y 8/3 One bltch lower 10 YR 3/2 Legs: SRP 5/4 Broad Patches: 3. Remarks: Trapped off 3 egg nest Small fish - remains in stomach. Blood, & 2 frozen tissue wibs taken. Alulars: LW- RW- MVT 13609 Eggs 282: A 7.25 X 4.83- 88 grns B: 7.07 X 4.89- 90 grns C: 7.07 X 4.72 - 85.5 grns