to them la beyond question. Equally certain is It that 
the c^les vshlch they gave at first were the s -me as those 
which I have heard so often at Lake Urabagog arid which 
evidently represent the night call of the species. As far 
as I have observed, it is uttered by the Veer/ only, at 
night and during migration,'but this rule may be subject 
to exceptions^ for the corresponding and closely similar 
call of the Hermit is sometimes given by day, even when 
the birds are still on their breeding grounds. 
