soon TERN 
Annoated List 
HECKER 
June i7-20,29,1923 
(Ret more) _ June 17-19 * Abundant. Eggs to grown young noted. They have 
the smae trick of rushing down the slopes in early morning an a screaming mass noted 
on Eihoa. June 20 s About 15,000 pairs. Many are laying and others 
have young. 
June 29 : Many young awing. 
July 26, 1964 
(Kridler) Mayy of the Sooty Tern nests contain young chicks.... I estimated 
asouc 2 to 3000 Sooty terns in this general area (that approaching the top of Bow 
Hill??] 
-- 
•Sept. 
(Fleet, POBSP) Saw h adults in evening 
(Kridler) Four adults were recorded flying overhead, ho young were noted 
March 15, 19^5 . 
(Banko, POBSP) Estimated total island population - 50,000 
Breeding -- 80 with eggs, 20$ with chicks 
(Kridler) _ Estimated population of at least 50, 000 birds if not more 
and approximately 25,000 nests. These were scattered all over the island. They were 
located on bare rock on Korthwest Cape and. on the main island; under Chenopodium 
vegetation above the cliffs ;to the tops of the hills. About 50 <f> contained egg 
chicks on Northwest Cape and 15-20/ elsewhere on the island. At least ttex three 
almost fluily fledged young were recorded.' 
Sept.10-11 ,1966 
(Kridler) Approximately 300 were on the ground, and more of them at night. 
A few flightless chicks were observed-most of these were on the west slope of Flagpole 
and Summit Hills. However, some were also found on the north slope of Annexation 
Hill. 
March 10, 1967 
(Hackman, POBSP) (Kept) Population estimate: 15,000 (; or ) eggs and young. .. 
The keeker Island birds had all stages from eggs to fledged 
young, (notes.) Approximately 37, 000 scattered over sevdral slopes and ridges. 
Birds were in all stages of breeding from barely incubated eggs tp flying young/ 
In one area a few fresh chicks were .seen. Birds nested in bare areas on the slopes, 
on little ledges along the cliffsides, and under dense growth of Chemopodium. About 
25 io with chcks. [Measuments given in notes for 20 eggs.] 
Sept.15, 1967 
(Kridler) _ Approximately 100 adults noted flying about with a few imiaatures 
among them. 
