X 
' 6o 
morning-glory patches on the northwest side at night. The following month 
the island population vas placed at 25 , and 10 adults and one immature were 
counted. In March I 965 about 25 adults were found on the island. One nest 
With eggs was found in the interior at the western side. The following July 
six pairs with nearly fledged young were found. The island population was 
estimated at 100 birds. 
Reproduct ion : Young were found by Palmer in late June 1891 (Rothschild, op . 
cit.). Munter (op. cit.) found eggs or young birds in nests along the 
* * 
beaches and near the frigate colonies in March 1915* Several of the young 
were well developed. Wetmore (unpub. notes, 1923) found nests with eggs 
to young nestlings in May I 923 , and collected an immature. Nests without 
eggs were found by Woodside and Kramer (op. cit . ) in March 1961. 
1 
Only one nest with eggs has been found in recent years, in March 1965. 
t 
. >1 
Six large nestlings were found in July 1965. Immatures were noted in March 
I 963 , and September 1964-. 
The species breeds from early April to mid-December, on Kure Atoll, 
' 9 
j ' * * 
500 miles to the northwest. Egg-laying occurs in April, May, and early 
June on Kure, and hatching in late June, July, and August. The season is 
less sharply delineated On Kure than that of the other two species of Sula . 
/ 
i • 
Flying immatures remain about the atoll until early December. The cycle 
is probably similar on Lisianski. 
1 ^ v 
Other Specimens : AMNH 72947 I, d, 50 June I 89 I; AMNH 7294-72, d, 50 June I 89 I; 
AMNH 729475, d, 50 June I 89 I; AMNH 729474, d, 1 July 1891; AMNH 729475, cT, 
2 July 1891 ; AMNH 729476 , ?, 5 July 1891 ,* AMNH 729477 , ?, 5 July 1891 ; AMNH .. 
729478 , 9 , 50 June 189 IJ AMNH 729479 , 9, l July 1891 j AMNH 729480 , 9, 5 
- 
July 1891; AMNH 729481, ?, 1 July I 89 I; USNM 240994, 9, 12 March 1915j USNM 
if 
m-. . - - ■ ----.■ 
131 
1 ' t . , * .. 
_ t 
