BOSTON PUBLIC GARDEN 45 



these aids the observer must be content to 

 let many of these small, treetop haunting 

 birds pass unidentified." 



But however it may have been in the 

 past, it is a pleasant thought to bird-lovers 

 that now, as the most recent years indicate, 

 the migrating birds are fully availing of 

 the grateful advantages of the Garden for 

 a pause in their long northward journeys, 

 and are affording ample present opportu- 

 nity to all who will to see them, to hear them 

 sing, and in a measure to become acquainted 

 with them, as far as this may be realized 

 away from their actual nesting-places, 

 where only the family life brings out all 

 their specific characteristics and inspires 

 whole-hearted song. 



As regards the dates of the larger migra- 

 tion-flights in May, the records show that 

 one occurred on the first day in 1907; on 

 the third day in 1905 ; on the seventh day 

 in 1901 and 1905 ; on the ninth day in 1900 

 and 1902; on the tenth day in 1907 and 

 1908; on the twelfth day in 1901, 1905, and 

 1908 ; on the thirteenth day in 1900, 1906, 



