Apr. 10th Larus argentatus 2 air stream. They will glide for a minute, making very slight gain on the ship which is then being at about 11 knots. The wind is about 1->0 beaufort scale. When they cry, they open their bills to the extreme. The cry is a plaintive squawk many short, sharp, high squawks following in quick sequence or a sort of throaty hollow- cuckling squawks. They will occasionally alight on the ship on any projecting pedestal which affords enough surface for them to alight on. Often a gull will be chased off his perch by 2nd gull almost invariably as a perched gull's place is being approached by a second gull, the first one will relinquish the perch to the second. This change of occu- pants on one perch will occur every few seconds, continuing for 3-4 times until the flock becomes settled or flies away. Breast expanded when squawking