on both islands. No nest is constructed, the egg being deposited in a 
shallow scrape in the sand* A few nests contained partially incubated eggs, 
but most were in an advanced stage of incubation* Chicks ranged from newly 
hatched to fully feathered and adult size* Some nests were only a few feet 
* 
apart where Scaevola was dense. Last September project personnel visiting 
Laysan found all stages of nesting from eggs to young attempting to fly. 
Apparently the nesting season covers a considerable portion of the year. 
Masked Booby 
On Lisianski a few birds were still incubating eggs. Others were 
s 
I I 
caring for young which ranged from newly-hatched to individuals starting 
to fly* On Laysan the young ranged from half to full grown* No particular 
* 
area on either island seemed to have a concentration of birds* On Lisianski 
♦ 
i 
the eggs were laid on shallow scrapes on the ground. 
Brown Booby 
« , 
i 
On Lisianski a small colony of about six pairs were rearing nearly 
t 
full-grown chicks* At least one of these birds was able to fly a little* 
i 
* 
On Laysan a colony of about six pairs were incubating eggs or tending newly- 
*9 
hatched chicks. On Laysan the stick nests were built on the ground amidst 
scattered Scaevola bushes. A number of adults were observed in other parts 
4 
of the island. 
i 4 
*♦ 
Red-footed Booby 
Birds were about equally common on both island?• Scaevola and other 
larger bushes were used for nesting* There was a tendency for the birds 
