January 25, 1893. 
Dear Sir : — . „ 
During the early part of the present winter Cam- 
bridge, Massachusetts, was visited by an unusual number of 
Pine Grosbeaks ( Pinicola enudeator) which, after exhausting 
the food supply, departed very suddenly. I wish to trace, 1 
possible, the routes which they followed and the total area 
covered by their migration. You can aid me in this by kindly 
answering the following questions in the spaces left lor that 
purpose. Please write your name and address on the dotted 
lines at the head of this page. 
2. When were the first seen and at what date were they 
most numerous? (Approximate dates will be much better than 
none) . 
