TRAVELS OF THE BIRDS. I49 



Nortli there are some famous " robin roosts " in 

 the autumn, as Bradford Torrey has shown in 

 one of his delightful books. 



I learned, too, that the mocking bird and 

 white-eyed vireo are both summer and winter 

 residents of the State of Louisiana, while the 

 nonpareils, indigo birds, and orchard orioles are 

 only summer dwellers, going still farther South 

 in winter, and the myrtle warbler is a winter 

 resident, but leaves for the North in summer. 

 Thus it will be seen that the subject of migra- 

 tion is a rather complex one, and that there are 

 birds not only of many kinds, but also of many 

 minds. 



