Table 
Dixiercntiai recapture of club and non-club Blue-faced Boobies 
on Enaerbury Island. 
Banded in Nov., 1963 
as 
No. Band ed! 
p 
ecaptured in July, 1964 
7° on 
% on 
Encerbury 1 other Islands 
Adult Plumaged 
Non-nesting birds 
% recaptured 
which were fereein! 
hestin 
on 
Enderbur; 
on oth 
island 
S^-7 
- ■ ni *ri a a ra^a w ntf.-f.— 'g ffff • m T s ft FT~” * m r ' r r a, '~i - &3S53ei3 
Adult Plumaged 
Nesting birds 
#- 29 
OO- o 
Adult Plumaged 
Club Birds 
12.0 
■ft-a- 
00.0 
00-0 
0 0.0 
\o.l7‘ 
A comparison of 1 he adult plumaged club birds wita the bther two categori 
shows that club birds lire not only less likely to be rfcaptured but!are more 1 
to be found on another! island. The smaj§I number which iere found nesting would 
indicate that there is a large number proportion of sexually immature birds 
in the population. The fact that none of the <4# club birds we. e found nesting on 
Enderbury probably Indicates that all full adult birds in the club are from other 
islands. 
The fact that only 16.4$ of the club birds were recaptured while 30.7% of 
the non nesting birds were recaptured would (indicate that dlub birds spend a 
greater proportion of their time at sea. This is further supported by the 
data in table 
which compares recapture rates for different age groups 
85 % of the subadult birds were in clubs while only 1-2%! of 
the immature birds were in clubs. 
There is a decrease in the percent of the birds recaptured with age 
from 16.7 Tor adult plumaged birds to 11.6 for subadult birds and only 6.0 for 
