Pehruary 8 - 13 , 1964-Sib) ley: (/both species) - 15 maximujn went over one 
afternoon - loth species seen. 
y 
; Uiijjfcrfjfrr'TiT <r~iy 
V*.. I..•* Vl :• K ' ■" iV ' ' 
,. y !$) 
July 22 - 25 , 1964 —- Sibley summary s " 49 adults landed with 1 recovery. 
64 nests with eggs, 38 nests with young. — most of young 
etJ 
recently hatched* fl 
5° 
July 25, 1964 
Marshall 
u 
Also saw 2 Frigate chases, 
both female Great Frigates chasing Masked Boobies. In 
both cases the Boobies were able to get up enough spped to 
escape. 
IS 
Oct,, 9-17, 1964 .——SIBLEY summary! 11 2 nests with 1 egg, 87 nest with young. 8o 
nestlings banded. ILstimated 200 birds.” 
October 9, 1964 --—Sibley One female seen chasing Blue-faced Booby - no food obfc. 
October 11, 64-—-Heckman Neet Description: Nesting colony locted in flat area of 
the central depression that is characterised by unusually lush growth 
of Trib-ulus forming a solid mat 5 to 12 H deep and overgrowing low branches 
& stumps of Cordia trees. The area, 200X700* bordered by Digitwria. 
N@gt sites are on flattened or slightly hollowed areas on roots of trunks 
v/" 
of overturned Cordis or where a Tribulus platform has grown up on stumps, 
trunks, or low branches of Cord ia. Nest construction is of a few Tribu^uj 
stems added to natural growth. Several sprigs of Boerhaayia were found 
in one nest. Over a period of time guano builds up the nest height to 
form a hard, level platform. 
, Height 
Depth 
Dfcsmeter 
38” 
3 * ! 
10X11” 
29 
5 
10X13 
\ 
13 
10 
13X14 
27 
11 
14X17 
12 
2 
10X12 
16 
5 
14X14 
21 
6 
13X13 
20 
5 
14X16 
10 
5 
12X13 
25 
4 
11X13 
