20 BIRDS OF THE 



the Garden is shown under the discussion 

 of the species in the annotated list which 

 follows. A long period of migration is es- 

 pecially characteristic of some of the species 

 which belong to the sparrow family. No 

 one of these nests in the Garden or on the 

 Common, yet it will be seen that there are 

 not a few very late arriving individuals be- 

 longing to species which appear in March 

 and early April, indicating that some in- 

 dividuals of those species which early reach 

 their nesting haunts delay their coming very 

 much for some reason and arrive with the 

 warblers and other later migrants in mid- 

 May. 



In regard to the long-extended migration 

 of certain species, there is reason for think- 

 ing that the earliest arriving birds, belonging 

 to species which nest in Massachusetts as 

 well as in northern New England and far- 

 ther north, are summer resident birds, and 

 that the later arriving visitants are birds 

 which will proceed beyond the confines of 

 the State to breed. Thus the very late 

 savanna sparrows, song sparrows, swamp 



