R. M. STRONG. 



TABLE XXII. 



As the first egg laid was regularly marked, it was possible to 

 know which egg hatched first. In Table XXL, the first egg laid 

 appears before the other. The first nestling to hatch was marked 

 by a clipped toe. Aluminum ring-band tags were placed on one 

 leg of each bird before it left the nest. 



