182 



is to be feared that birds shot now on Martha's Vineyards Island may have 

 blood of T. americanus in them, the two forms being closely related, 

 somewhat difficult to distinguish, and evidently sub-species of each other. 

 Nevertheless, a bird taken in 1901 was pronounced to be typical cupido by 

 Mr. Brewster. 



From these facts it is pretty clear that the Heath Hen is among the 

 birds the fate of which is sealed, and which, if not already exterminated or 

 mixed with foreign blood, will soon have disappeared. The footnote in the 

 Proceedings of the IV. International Ornithological Congress, p. 203, is 

 herewith corrected. 



