36 BIRDS OF THE 



the succeeding days, May 21, 22, and 23, 

 the records were also quite large, these 

 being fair days, with a maximum tem- 

 perature of about 60° and westerly winds 

 and a minimum temperature of about 42°, 

 conditions calculated to hold the visitants 

 back from hastening farther north. On May 

 21 sixty migrants were recorded, of which 

 forty-one were warblers. On May 22 fifty- 

 seven migrants were recorded, of which 

 thirty-nine were warblers. On May 23 

 forty- three migrants were recorded, of which 

 twenty-three were warblers. The numbers 

 of migrant?6 daily thereafter during the 

 remainder of the month were compara- 

 tively small. But the year 1907 surpassed 

 all previous years, except 1905, in the num- 

 ber of migrant birds which passed through 

 the Garden. 



In 1908 by far the largest migratory 

 flight came on May 12, when there were 

 one hundred and thirty-seven migrant 

 birds in the Garden and fifty others were 

 recorded on the Common, surpassing the 

 record-day of 1907. The preceding day and 



