L0/h? 172831 487 Doug Bell Catalog Larus occidentalis x glaucescens Location: East Sand Island (1 mi. SW Chinook, Washington), near mouth Columbia River, Clatsop co., Oregon Date: 11 June 1989 Sex: B LT: 1.07 X 0.89 X 0.73 RT: 0.72 X 0.52 X 0.49 Wt. 1220 G Fat. Moderate Wing L. 43.1 cm (L) Span: 148.3 Pr L 10- 30.3 7- 29 9- 31.1 6- 26.6 8- 30.9 5 25.2 Tail L- 16.8 Tarsus: 6.41 (L) Toes In- 4.76 Mid- 6.36 Out- 6.26 Head L: 13.33 Tal. 0.50 Bill L: 6.07 Post Nares: 3.85 Bill V: 1.33 Gape: 3.28 Bill Y. Gaps. 2.3 ant Nares: 2.13 Post Nares: 1.99 Breeds Patchy: 3 Bill lobn, um 2.5 y 7/10 LM 2.5 Y 7/10 Spot 15 Egging lobn: 10 yr 7/10 + corners Feet: 5 y 8/4 Pigment: 10 yr 3/2 Blotchy, sparse, lower ½ L 8 ½. Legs: 5 RP 6/4 Remarks: Collected by wacking with folding chair as he dive bombed me while I was inspecting his 3 egg nest. Died on impact! Stomach full of fish meal. No 10-4, 1