
Number 
of 
Birds 
100 
80 
95 nests--egg broken 
early in incubation period 

-____ 70 nests -- egg broken 
late in incubation period 

10 20 31 10 20 31 10 20 26 
December January February March 
Figure 18. Number of Laysan albatrosses remaining in the vicinity 
of their nest sites after destruction of their eggs. 
Number of 
nests being 
incubated 
80 
60 


ho Aproximate average 
hatching date 
20 
10 20 31 10 20 31 10 20 28 10 
December January February March 
Figure 19, Length of time Laysan albatrosses continue to incubate 
sterile eggs. 
36 
