THE MIGRANT SHRIKE. 



291 



way to account for the considerable diversity which we find in specimens, is 

 simply to recognize this state as a meeting ground of two forms which have 

 attained their maximum differentiation elsewhere, Ittdovicianus in the South, 



Taken near Columbus. 



THE TREE IS A HONEV 



Photo by the Author. 



THE SHRIKE'S FORTRESS. 



X>CUST, AND A NEST OF THE SHRIKE APPEARS ON THE RIGHT. 



and e.vcubitorides in the West and without attempting to assign subspecific 

 value to the various phases as they appear. Hence, however we may regard, from 



