“WEDGE-TAILED SHEARWATER 
Annotated List-NIHOA 
Dec. 9-16, 1961 / None seen. 
(Kramer) 
June 10, 1962 
(Kramer & B) Common, on eggs 
March 6-7,1964 Population estimate-100 (?) Remarks: courting 
(Amerson, POBSP) No. of nests -none observed behavior observed. 
__ No. of young- — 
No. banded by S.I. - 6 
) i 5 
(Walker) Courting and pairing 
July 2$?, 1964 
(Kridler) Wedge-tailed Shearwaters -were very common, found all wer the 
island, and a number of nests containing eggs were discovered. 
Becasue of the rocky nature of the island it is very difficult for them to dig 
burrows and the nests are constructed under thick vegetation right on the surface of 
the ground or else in the very small nooks and crannies or other depressions formed 
by the loose rocks. Others had established nest sites in the depressions in the 
rim rock. 
Sept. 23-2^ 196^- 
(Fleet, POBSP) 
(Kridler) 
Counted - 
Estimated total population 
-- 2,000 downy chicks 
-- none made 
_ At least seven to eight thousand. Wo eggs noted but innumerable 
small downy chicks. Wo estimate could be made as to their number; 
most of the chicks were to be found in the innumerable depressions four to five 
inches in depth to be found throughout the south slopy side of the island and under 
the brush. 
March 13-1^,1965 
(Banko, POBSP) 
(Kridler) 
Estimated total island population-18, 000 
Breeding : Wo eggs or young seen. 
Banded --n 85 
These birds were scattered over much of the iland under brush, 
in rock holes, and various nooks and crannies in the cliff side. 
They all appeared to be paired. Very much moaning taking place all day. 87 were banded 
by night by the use of headlamps. The population estimated 18, 000 is a very rough one, 
Wo eggs or young were noted during this trip. ... After dark we worked our way up 
the hillside from camp to the Saddle banding ... Wedge-tailed Shearwaters. 
