Journal R.E. Johnson 1968 June 12 Anchutha Island, Alaska (cont.) One of the nests with one eggs has already fledged at least one young bird. Bulls have 3 brood patches, one for each egg. What happens when a bird lays 4 eggs? One nest at Big Lake had 4 eggs! Most have 3. Two egg nests may all be results of a 3 egg nest which only hatched out & subsequently fledged 1 young. Dr. Johnston pointed out to me this evening the old brood patches on a Rock Sandpiper he was skinning: 2 long narrow parallel brood patches! At the Glaucous-winged Gull nests we found an assortment of different foods which included the following: Fish bones (the most common food item judging from refuse - appear to be 90% of diet or more), a large fish head which can probably be identified to species & thus was saved, sea urchin tests up to 2cm, a bird wing, a Crested Auklet head, another aleid skeleton (with skull), a 2 cm amphipod, a 4 inch chiton (pinkish, with the mantle grown up over the shell), a small cancer crab, limpets (Acmaea sp.), Periwinkles (Littorina sp.), Thais sp, another snail species, & Blue mussels (Mytilus edulis). June 11 Anchutha Island, Alaska - addenda to Journal.