no BIRDS OF THE PUBLIC GARDEN 

 47. White-throated Sparrow 



Zonotrichia alhicollis 



The White-throated Sparrow, or Pea- 

 body-bird, appears in the Garden in late 

 April. Its arrival has ranged between April 

 21 and 30. The season of its migration has 

 extended to May 16 to 26, usually near to 

 the last-named date. In 1905 the migration 

 covered the full period between the earliest 

 and the latest dates, namely, thirty-six 

 days; in 1903 and 1904, thirty days; in 

 1906, twenty-seven days; in 1907, twenty- 

 nine days; and in 1908, twenty-five days. 

 The largest number of birds recorded upon 

 any one day was about fifty on May 3, 1905, 

 and again on May 12, 1908. On the last- 

 named date there were almost as many 

 more on the Common. Usually the largest 

 number of birds present at any one time 

 has been from eight to fifteen, and it has 

 been attained either in late April or be- 

 tween May 7 and 14. The maximum num- 

 ber for 1907 was as late as May 19 and 20. 



Many of the White-throats linger a num- 



