No. of birds 
and nests 
67 
60 
All birds and eggs destroyed 
50 
All birds and eggs 
destroyed 
ho 

t 
( 
i 
30 
| Return of birds 4 Return of birds 
i | 
| | 
i i 
20 + 
al 
B 
" | 
10 | 
| Re-building of nests 
| 
i 
0 5. 10 15 20 25 31 5 10 15 20 2 30 
December January 
Figure 17. Effect of total extermination of Laysan albatrosses 
on a half acre plot. 
33 
