HOW LAUD 
"breeding dat a 
BHOW BOOBY 
March 19 5 19&3 — Wirtz: "There are perhaps 100 Brown Boobies nesting among 
the masked, . . . . 
ti 
A . ^ 
^Photograph: several large young - 
July 6 - 8 , 19-63 Sibley: 8 nestlings banded. Probably 15-20 other nests 
not recorded , rV 
Q S & // O 0 C\ J *-» / £ 
a.„<£ 3 O V/ 
July 6 - 8 , 1963 - Sibley: "100 plus or minus -birds around island." 
October 9-14, 1963 — Sibley: Estimated 100 birds. 65 adults and 13 immatures 
banded. A few immatures tiS found with bands, 10 oauod 3 
October 18-21, 1963 — Sibley: 7 collected, 12 adults and 1 immature banded. Only 
U 3 nest. 
October 9-14, 1963 — Sibley: "...13 immatures banded. 5 nest all with eggs." 
(2 with one, 3 with 2) 
October 18-21,1963 — Sibley: !1 .. .1 immature banded. Only three nest, one with young 
other with 2 eggs." 
February 8 - 13 , 1964 — Sibley : "3nest with two eggs, 2 with small young and one egg. 
All concentrated on SW corner of island." 
f*w 
February 8-13, 1964 — Sibley: Estimated ?0 present. 3^ returns, 10 named, 
10 blood samples taken. All nest concentrated on SW corner of island 
