J.M. Johnston. 1948 Bonapartes Gull. 3 Larus philadelphia. Larinae 18 Aug Holham Bay, Alaska. Between Point Baker & Dundum Pen. These gulls were feeding like they did the other day - Covering the whole surface from a scattered flock, flying about 20 feet high, fluttering or swooping crazily down to within a foot or so of the water then diving in head only. About one in ten [is] an adult, the most of them are immature, varying from ones that are mottled with brown along the flanks & shoulders to clean white color. These immature all have the black band on the tail. A small flock (50) were standing on a point of the beach that jutted out from shore. When I lowered they flew off the point and alighted in the water within 75 feet of the point. Members of the flock kept coming and going, some went just to the eddies & swirls 100 yds off shore & back. This flock departed entirely by 1/2 hour after high tide.