MIXED CONGREGATIONS. 239 



two species of Pigeon are more or less sociable 

 with the Rock Dove in all districts near the sea. 



Such are a few of the mixed congregations to 

 be seen in various districts during the autumn. 

 Many others may be met with throughout the 

 haunts of birds, which will not fail to interest the 

 observer. Birds are even more attractive and 

 engaging when massed in flocks, than when living 

 alone, and, what is very important to the naturalist, 

 the habits of most species are considerably changed 

 during these gregarious and social periods. 



