32 The Wilson Bulletin — No. 50. 



Adams avenues of this city. There were also smaller numbers 

 at the next tower but, although they appeared to fly against 

 the glass, none were injured. At the other tower, however, 

 the birds kept falling at the rate of about one per minute. I 

 returned at eight o'clock and started to count the dead but soon 

 give it up. It is sufficient to say that there were five or six 

 bushels of them. They were all Myrtles with the exception 

 ol one Field Sparrow. 



SOME APRIL AND MAY WORK SUGGESTED. 



During the season of migration we are so occupied with 

 the movements of the birds northward that we generally for- 

 get that there are other sides to bird stud)-. When do the 

 different species of birds begin to build their nests? How 

 Ion-- does it take a pair to complete a nest? Are the eggs de- 

 posited on successive days? How- long is the period of incu- 

 bation? Do both birds take part in the incubation, or does 

 one sit continuously while the other feeds her, or how is it? 

 How rapidly do the young grow, and when do they leave the 

 nest ? When do the feathers first appear, and how are the 

 downs attached to them? Do the birds use the old nest a sec- 

 ond time, and if so do they remodel it, clean it, or use it as 

 the young left it? How do the old birds feed the young dur- 

 ing the first few days after hatching? These, and a host of 

 other questions can be answered by anybody who can and is 

 willing to give some time to' watching nests that may be so 

 placed that they can lie seen at close range. Have an eye to 

 your immediate surroundings in addition to specially favored 

 places where you love to go. Prove that the slur often aimed 

 at amateur field work is not applicable in your case at least. 

 Such work needs to be done. 



