1949 Sterna forsteri June 26. Lagoon just S. (1/3 - 7/3 mi.) of mouth of Salinas River, Monterey Co., Calif. A nesting colony of an estimated 125 pairs -- as judged from 250+ adults in air screaming at me while I was there. The site is on three small points on the N. shore of the lagoon which is cut off from the ocean by low dunes and from the river by about 1/3 mile of hay-fields and dune-shrubland. The points are dotted with low, scattered Salicornia (which is denser at greater distance from the water). I only investi-gated one point closely, & found such density there that I left without completely census-ing it. In a space of about 100 x 100 feet, however, I noted 25 or more nests, varying in contents from 0 to 1 & 2 & 3 eggs -- several with dead young in or near them. At least 10 dead young were seen, from tiny downy ones up to one with back feathers fairly well out + primaries part funk [illegible] thus sheaths. None were seen to be eaten or mangled, though 1 addled egg was broken into. One tiny young, still alive, huddled in Salicornia at edge of a nest; and 1 large young swam the ooze between the points & disappeared among the Salicornia bushes. No reason other than the accessibility of the site to predator disturbance by human prowlers would seem to account for the situation as is. Call notes given by the terns were as follows: 1. "tuck ---- tuck, tuck" (irregularly repeated) 2. "keargh" or "waugh". (scolding note,