Douglas A. Bell 1985 3. Catalogue East Sand Island, Columbia River Mouth, Oregon (near Chinook, WA); at Baker Bay, WA. Clatsop Co., ORE 018-cont. 1 Liver fluke in R. lobe. Brood patches present. Type of mate unknown. 3 eggs in nest. Tongue preserved in Bouin. Tissue taken. Light fat. June 5, 1985 172723 h -> Lg 019 f Larus glaucescens Adult plumage. Trapped on nest Wt. 950 gms containing 3 eggs. Iris- mottled ochre-violet. Eyering - deep pink. Feet & legs - flesh, slightly pink. Bill - greenish yellow Left ovary w/ova: 2 ova > 5mm &, 8 ova > 3mm & but less < 5mm Right ovary inactive and 23 ova < 3 mm. 3 brood patches. Mated to a male having This bird wing-tips slightly darker than mantle. 019 looks like f "glaucous-winged". Nest in same area as 018. Tissues taken. Moderate fat. Lg/H MVZ 020 f Larus occidentalis x Ad. plumage. Trapped on nest Wt. 850g glaucescens 172818 (Located in same area as 018). Eyering yellow, Iris pearl mustard greyish, Bill - yellow, Feet & legs - fleshy pink. 3 eggs in nest. Right ovary inactive, Left active 3 ova > 3mm &, 5 ova < 3 mm & > 1mm &, 30 ova < 1 mm. Liver: left 6.8 x 3.2 cm, 20 gms; Right : 6.1x3.6cm 14 gms. Mated to a Western Gull w/ yellow eye ring, dark mantle and wing-tips. Brood patches. 3 Eggs saved -> egg white taken (# 020 A-B-C). Tissues taken Light fat. eggs 020 A-B-C Larus occidentalis x glaucescens Three egg clutch from nest of 020. A B C MVZ 13606 Wts: 84, 82 & 88 gms. Shells & egg-white saved (Steve Speich). Egg white from 020-A 020-B.