Amerman, Kenneth 1964 Sooty Tern cont. February 17 - 20,000 immature; 5000 roosting. ~600 remained on main island, for first time, during morning, on slope among Brown Boobies. Moved to outermost part of the north point by mid-afternoon, half on ground and half in air. One hundred to two hundred birds still around islet all day. Birds no longer congregating in thick clouds offshore before coming in to roost; instead, constant trickle of small numbers from 4 to 5 p.m. on, come right in over island. February 18 - Beginning of nesting. ~25 eggs being incubated in large group on north point. February 20 - Another group of birds remained on slope after main body of birds departed. Apparently moved into flock on north point later in day. 2000+ present on point during day, 3/4 or better on ground. 25+ eggs on islet. February 21 - Birds alighting in roosting areas on south side of the transmitter building before dark for first time. February 22 - 5 - 6000 birds on point all day. Only 3 - 400 of these in air. February 23 - 8 - 1000 birds on point. No birds roosting on road 11:30 p.m., 6 a.m. nesting moring, nor on left of transmitter building. February 24 - Sooties everywhere! About 3000 remained on the south (right) side of the transmitter building all day, on the ground, with another 2000 in the air milling around. A few hundred also were sitting along the southeast shore, among the frigates and boobies and