158 BIRDS OF THE PUBLIC GARDEN 



tion of the species, four to six birds being 

 present in a season. In 1907 nine birds 

 were recorded, six being present together 

 on May 19, three males and three females. 

 The earliest appearance of the species was 

 on May 4, 1906, a male bird. In three of 

 the seasons the first comer has arrived on 

 May 9, namely, in 1900, 1902, and 1905. 

 In 1903 there was but one record, two 

 birds appearing on May 22, which is the 

 latest date of the first appearance. Either 

 on May 22, 23, or 24 the last visitant has 

 departed. The presence of a female bird 

 on May 26, 1906, forms a single exception. 

 The records indicate that a visitant some- 

 times remains four days. Two birds were 

 seen on the Common on May 12, 1908. 

 The males sing. 



81. BAY-BREASTED WARBLER 



Dendroica castanea 



There are two records of the Bay-breasted 

 Warbler. On May 23, 1900, a male bird 

 was present in the Garden. It did not re- 

 main to a second day. And on May 22, 



