160 



BIRD STUDIES WITH A (lAMERA 



Hence, wlien Mr. C. J. Maynard visited tlie Rock 

 in 1872, lie found that the colony of Gannets on its 

 summit contained only five thousand Ijirds, which, 

 nine years later, Mr. William Brewster reports had 

 decreased to fifty ])airs. Mr. Brewster also noted a 







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fresh cause for tlie destruction of tlie eggs of the 

 birds nesting on the sides of the liock, in the shape 

 of a cannon wliicdi had heen intro<lnced shortly be- 

 fore his visit. He writes: "At each disclia.i'ge the 

 frightened Murres ily from the Rock in clouds. 



