BLfE-GRAY NODDY 
Annoatated List 
NECKER 
June 17-20,29 j 1923 June 17-19 : Common. Nesting season here father advanced as al1 
(Wetmore) _ you@g seem to be awing. This species frequents little caves and 
overhanging ledges and does not come out in the high open slopes. Many seem now to 
spend the day at sea and return to roost at night. At night fall they are common 
about camp but few are seen during the day. 
June 20 ; About 400 pairs. 
June 29 : No change 
July 26, 196k 
(Kridler) 
the western hill] 
■Sept. 2 57^96b 
(Fleet, POBSP) 
I estimated about 200 Blue-gray Noddies in this general area [that of 
some of -which -were on eggs. 
Total population estimate-I 50 
eggs to immatures 
(Kridler) An estimated population of 500. Breeding phenology eggs to almost 
full grown young. Bo nests were counted in the time we had. 
March 15, 1965 
(Banko, FOBS?) Estimated total island estimate---100 
Breeding -- some with eggs 
*>- ■» 
(Kridler) _ Estimated 100 on the island. In the light of further trips these 
population estimates are considered to be very low because as many Fairy Terns 
many of these birds nest in holes in the cliff side. Only one egg was found and two 
of the birds were banded with band numbers 662-05707 (an adult female which had 
just liad an egg and was still wet) -- ( the cloaca was red and distended, the 
brood patch was present). No. 708 had a normal cloaca. However, It too had a brood 
patch. 
Sept.10-11, 1966 
(Kridler) Bo eggs or young were found.. They were sparsely distributed, 
over the cliffs of the island and here again Borthwest Cape was the favored place 
by this species. There was a decided increase of the population during the night. 
March 10, 1967 
(Hackman, POBSP) (Kept) Population estimate s several thousand - eggs to young. 
(Botes) Only a few eggs and several small chicks were found because 
this species nested along the clif^T walls in inaccessible areas. Couiidnt even begin 
to survey them in six hours. Population probably exceeds 2-3,000 birds. Most chcicks 
downy. 1 chick about 1 week from fledging. 
Sept. 15, 1967 
(Kridler*) __ Adults s Main islands 135, Borthwest Capes 119. One was found 
incubating an egg. These figures are considered to be a minimum 
because some of these birds nest on bth the north and south cliffs of the main islaad 
which are relatively inacessible. Hence we were not able to work these areas and 
obviously there are a number of [these] terns nesting here. 
