162 BIRDS OF THE PUBLIC GARDEN 



each instance the numbers were smaller. 

 These figures indicate how abundant the 

 migration of Black-polls was in the autumn 

 of these two years, especially the latter. 

 The latest lingering birds, two in number, 

 were seen in 1900 on November 2. 



83. BLACKBURNIAN WARBLER 



Dendroica Uackburnia 



The Garden has received a few visits 

 from the Blackburnian Warbler. In six 

 of the years of observation the Blackburn- 

 ian has been present. In four of these sea- 

 sons a second visitant, or two, has come a 

 few days after the first. All of the records 

 are of male birds except one. On May 24, 

 1908, a female bird was present with a 

 male. Neither remained to a second day. 

 Usually the song has been heard. In two 

 instances the visitant has stayed four and 

 five days respectively ; in the first instance, 

 1900, from May 19 to 23; nf the second 

 instance, 1907, from May 19 to 22. The 

 earliest appearance of the species was on 

 May 10, in 1900. In four of the years a 



