Larus glaucescens. Almdaut. Hundreds on the piles and roofs of sheds. Very tame, allowing one to sit on the steamer within six or eight feet of them. Three were seen in the rigging of the battleship "Nebraska", while a nearby steamer had a score of them on a couple of horizontal beams close above her decks. Several were seen on the hurricane decks of passing ferry boats. About the ferry slips they are quite moody, particularly the young, which are far in the majority of the adults. Several were seen to stretch their necks forth and for sometimes half a minute, keep up a continuous cackling call, usually ending by chasing the bird from the adjacent pile by making a sort of flying jump at it. All of the adults seen had more less speckly heads. I saw birds on the piles at Clamed Mole also. I saw one young bird flying over lower Market Street this afternoon. Last evening when going to the ferry about 4:50 P.M., I saw a great many gulls (apparently mostly Larus glaucescens) flying west- ward over the city. They were to all appearances following the low land, keeping out Seary Street or thereabouts, where a large valley runs towards the ocean. Larus canus or Larus brachyrhynchus. Several