THE BASS ROCK 



243 



partly because there are few things more misleading to 

 human vision than birds in movement. 



The first well-considered estimate we have of the Gannets 



[if. Gurneij, Phot. 



GANNETS AND NESTLING. 



on the Bass is that by Professor Fleming, who is cautious 

 in what he says in the " Zoology of the Bass " — but, " con- 

 sidering 1800 as rather a high number of young birds 



annually removed from their nests before being able to fly, 



R 2 



