Population : The species has been found on each POBSP visit to the island. 
About 300 adults were found in March I963. Some birds were sitting on 
nests, but no eggs were found. In March 1964 there were an estimated 1000 
adults present, and about 200 nests with equal numbers of egg and nestlings. 
About tOO birds were present in August 1964, but only 100 the following month 
. 0 
There were 2500 adults on the island in March 1965. Most of the 400 nests 
found still had eggs. In July 1965 the population was estimated at 1000 
adults and 300 nestlings. 
Reproduction : Munter (op. Cit .) found the species nesting, with eggs and 
young birds, in the shrubs and plants around the shacks, or on the ground. 
In March 1915* 1 ; . 
7 ' i . _ 7 ‘ ; 
Resting and roosting birds have been found primarily in the ironwoods 
j 
and tall Scaevola along the western side of the island* In March 1964 there 
were about 200 nests In this area, with equal numbers of eggs and small 
nestlings. In March of the following year an estimated 400 nests had about 
350 nestlings and 50 eggs. The July I965 survey found about 300 nestlings 
% 
in nests in this area. Restlings ranged from half-grown to nearly fledged. 
Surveys in August and September 1964 did not report breeding activity or 
r s * 
young birds. 
Movement : A Hawaiian Roddy Tern banded as a nestling on Lisianski In March 
f 
1964 was recaptured on Sand Island, Johnston Atoll, 550 miles to the south¬ 
east, in February 1965* Five orange-tagged birds from Sand-Johnston were 
observed on Lisianski on l4 July 1965, but none could be captured. 
Other Specimens ; TJBNM 300454, cT, 17 May 1923J USNM 300455, c f, 19 May 1923. 
