FIELD NOTES Doug BELL 23 May 1986 LOCATION: Alcatraz I., S.F. (o., CALIF. WEATHER: High Overcast, Moderate Wind TIME: 9:30 - 9:35 With Ray Piotti and Kevin Shaffer in blind @ cistern. on IB - loutship fed - fish parts. Male of pair landed, F&W S. Band + Yellow, Ray counts 50 nests in Cistern and 20 on IB. 9:28 - Copulation attempt in pair on fallen tower. 3 banded birds seen on powerhouse roof: 2 with F+W.S bands + pink bands on left legs. 1 bird of F+W.S band on left leg, green band on right leg. 9:45-10:20: Seeking nests on cistern. One nest has 2 chicks, 1 egg. Another nest, where ? bur hole in right foot webbing, her eggs pipping. This ? so desperate to sit, she does so with us standing 2 m away. One gull coughed up anchovy and mors of yellow fish eggs. Bird in adult plumage except for a few blackish tail feathers missing on fallen guard tower (cistern). Pair count feeding (fish) on IB. This is the banded (F+W.S.+yellow-left leg) male - the pair seems to be without a nest. Male has grey Coak & scapularies, but it has brownish primaries and some black in tail. Subadult seen on powerhouse roof - brown back, grey shoulders. 10:40 Pair on IB, w/landed ?, choked at spot - no nest there. 10:43 Cistern: male landed on platform, long called directly at female. ? went 1m over to him, put head under his neck. Both birds moving Female then separated, moved, coughed up 2 small fish ('3