PLUMAGE 491 



Colour of the Eye. — I find it rather difficult to des- 

 cribe the nondescript colour of a young Gannet's eye. 

 Macgillivray contents himself with saying that at five 



weeks old it is " lightish." In the young Gannet I had in 

 confinement the iris was pale grey at twelve weeks, with 

 a slightly darker circle on the inner edge of the iris, 



