BOSTON PUBLIC GARDEN 7 



of the migrant birds to its grounds. The 

 central portion, consisting of the Frog Pond 

 and Monument Hill and their fringes of 

 level land, receives most of the birds which 

 visit the Common. But constituted, as it is, 

 entirely of large and tall trees and lawns 

 broken only by footpaths, being without 

 shrubbery and low growth, it attracts few 

 birds in respect both to number and di- 

 versity of species as compared with the 

 Public Garden. For this reason the Garden 

 has been the especial field of observation, 

 while the Common has been more casually 

 visited. 



The Public Garden is surrounded by elms 

 and maples mostly of large size, which line 

 the streets bounding it : American elms on 

 Beacon and Boylston streets, English elms 

 on Arlington Street, and maples on Charles 

 Street. These trees contribute to make the 

 inclosure retired and seclude it from the 

 brick and stone buildings and the streets 

 with their busy traffic which border it. For 

 although upon two sides trolley-cars are 

 constantly running, and on the Boylston 



