constantly engaged “by couples in sportive pursuit of one 
another, during t-hich they dashed hither and thither at top 
speed, alternately appearing in open spaces and disappearing 
ainong bordering thickets. Yet even the more widely 
scattered birds kept ever sufficiently in touch with all 
the rest to follow the same direction pursued by them 
while drifting back and forth, ^s has been stated, there 
must have been altogether at least a dozen of them and it 
is not improbable that there may have been quite half as 
many more. The only birds of other species seen with 
them were a Red-eyed Vireo and an Oven-bird, Hence the 
flock consisted almost solely of Gape May Warblers, Most 
of these were females, showing little or no yellow and 
evidently young of the year but there were at least two males, 
one a handsome adult, the other immature. In the same 
neighborhood, but not equally near our house and for the 
most part in s econd-groYirth woods of birch, oak and pine, 
I afterwards nbted a young female Cape May on September 9, 
male 
another on the 13th, a young male on the 17th, an adult/on 
the 25th, and tv/o males — one adult, the other immature — 
on October 3. 
The appearance together at Concord of so many of 
these Warblers on one occasion and the not infrequent presence 
of others during a period covering almost an entire month 
would be more surprising were it not that v;ithin the past 
