•M 
BROWN NODDY 
Anno at ed List 
NIHOA 
Dec. 9-16, 1961 Scattered commonly over the island, under vegetation and with eggs 
(darner) and downy chicks. Very antagonistic when nest approached. 
June 10, 1962 On eggs and with chicks and immature flying young 
(Kramer & B) 
March 6-7* 196^ Population estimate- 6 00 Remarks? courtship behavior 
(Amerson, PQBSP) No. of nests - 3 
No. of young —- 2 
(Walker) Chicks, eggs, beginning to lay eggs. ... Many more .. noddies roosting 
on ground [at night] 
July 25, 196^1- 
(Kridler) _ Common Noddies were very abundant especially in the various gulches. 
Nesting was in full swing but very few chicks were observed. What 
few 1 did see ranged in sij^e from those just newly hatched to others almost capable 
of flight. 1 estimated that 98 to 99 percent of nests contained eggs. 
Sept. 23-2^, 196 ^ 
(Fleet, PQBSP) Estimated total population- 3500 young 
Remarks? mostly locals and immatures with a few eggs and nestlings. 
Banded ? 3^- 
(Kridler) _ Not mentioned in notes. 
March 13-1^*1965 Estimated) island total population-1,000 
(Banko, PQBSP) Breeding? 90 °Jo with eggs, 10 $ with young. 
Banded--? None 
(Kridler, ) _ Estimated about 500 nests, 90^ of which had eggs and the remainder 
with chicks. Onenest was within 3 l/2 feet of a Frigatebird nest 
but there did not seem to be any fear displayed by the Noddy toward the frigate. 
These birds attacked us several times by swooping down on our heads and appeared to 
be quite protective. 
July 28 - Estimated number- 20,000 + 2 S °Jo 
August 1 , 1966 No.of nests 9,000 + 25 $ 
(Heiden, PQBSP) No.of young--- 1,000 + 2 5 56 
Age of young---0-10 days --- 75 56 
11-20 days- 25 °jo 
Banded ------- — -— nnup 
Population in breeding status, distributed over entire island* 
Nest sites extremely varied, ranging from the tops of rock outcroppings 
and Chenopodium , to shallow depresions under dense vegetation and the 
bare rock ledge of the gorges and peripheral cliff faces* 
March 8-9*196?” 
(Hackman, PQBSP y Jj '(Kept): Population estimate? Several thousa nd, *03 3fxg.. m 
(Notes): 1 downy young, 1 egg, most chicks l/2 to 3/k grown. Saw 
about 20 chicks under rocks mostly. Gene Kridler found a fair number of eggs here and 
there. Have no ideas regarding total popultion although it must amount to several 
thousand birds. 
