35 
1865. 
Apr, 15 
1866. 
Mar, 12. 
Sialia sialis. 
Middlesex County^ Mass. 
A nest in an olive ja- put up by Ruthven Deane (Cam¬ 
bridge) contained an egg to-day. The eggs were hatched 
May 3, The young left the nest May 18. 
Sav/ and heard five during the day. Although they 
seem to have just arrived one, this morning, entered 
several of tlie bird boxes on our place. 
It 
