GULLS 



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It will be seen that food fishes were not 

 present in so large a percentage of these birds, 

 and even if one-half were missed — due to the 

 rapid rate of digestion — it is evident that not one 

 in four of the gulls had taken a food fish during 

 the day. Human food, such as edible molluscs 

 and shrimps were present in a fair percentage, 

 but the destruction of fish food was very con- 

 siderable. To illustrate the influence of gulls on 

 fish food, I give one example. 



