SAVANNA SPARROW 105 



throughout the period of its spring migra- 

 tion. It has been seen more often and more 

 numerously on the Common than in the 

 Garden ; yet there are many records of its 

 presence in the Garden. It is almost always 

 found feeding upon the grass land ; but 

 occasionally has been heard singing from a 

 tree. It usually appears in the second half 

 of April, and the migration continues in- 

 termittently sometimes up to the middle 

 of May. The earliest arrival was of three 

 birds on March 31, in 1908. No other ar- 

 rival-date has been earlier than April 11, in 

 1904. 



Seven Savanna Sparrows were observed 

 in the Garden on April 17 and 18, 1904, 

 four of the same, presumably, remaining to 

 April 24, thus completing an eight days' 

 stay. The little flock was seen each morn- 

 ing. Nine birds were seen feeding together 

 on the slope of the hill on the Common 

 upon April 22, 1907, and five days later 

 seven were present. Unlike the Vesper 

 Sparrow, the birds of this species appear, 

 therefore, to linger several days. 



