ENDE. BURY 
DRAFT 
BIRD INTRO. 
In November 1963 — five of the seven nesting 
species had fewere active nests than in 1964The Red-footed EoobY## and 
Lesser Frigatebird# nests were nearly as numerous or more numerous in 1963 but 
there was a much higher nestling 
mortality in 1963# The Brown Booby was probably not affected by the factors 
although the absence of a definite cycle in this species makes it difficult to 
interpret comparisons from one year to the next. 
By 
In February 1964 
the nesting activity of all species was low. 
Only the Lesser Frigatebird and Rgd-tailed Tropicbird were starting new nesting 
cycles in 1964 February 1964 seemingly uneffected by the poor nesting sunness 
conditions earlier. On 
On Howland Island the contract between 1963—1964 and 1964-1965 was much 
more apparent during both November and February. The reasons for this reduced 
nesting activity and increased nestling mortality are not 1mown .Although 
cat predation and human disturbance are unlikely 
to be involved and factors other than food shortage, the most obvious explanation. 
may be involved. 
