HOWLABD 
■breeding data 
USD-FOOTED BOOBY 
March 19, 19^3 — Wirtz: and there are some interesting red-footed 
boobies nesting in the dead trees in the center of the island J 1 
“These Birds are sitting on eggs and chicks, so there is little 
question about, their maturity. I! 
HOWLAhD 
Birds 
annotated list 
1 
HDD-FOOTED BOOBY -1- 
July 6-8, 1963 -Sibley: “About $0 adults and subadults around* Some adults gray, mo 
most with gray wings and Back,” 
^uly 6-8, 1963 — Sibley: Besting and roosting only in grove of old dedd 
trees, 8 adults and 5 immaBures Banded, 7 nests with one egg, 
A with small young (total 11) . 
Octooer 9-14, IQbf:— Sibley: !, 6 nest found. 2 with large young, 1 with small 
young, 3 with eggs . 11 
October 18 - 21 , 1963 — Sibley: M 5 immatures and 1 nestling banded. 0 
ne nest with 
/ 
egg 
ir 
14, 1963 _ Sibley:cEstimated 100 birds. Mostly absent during day 
10 blood samples taken. 
October 18-21, 1963 — 11 collected, 29 adults, 2 subadults and 5 Immatures 
b banded. 
