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SOUTHERN FLIGHT OF NON-DIVERS, ETC. IOr 
manner until all are divided into flocks and have de- 
parted, leaving only a few behind and those are either 
scabs or incapacitated for a long flight. This only 
seems to apply to our local birds, hatched in the United 
States, the migratory teals usually departing in the 
dark of the moon. The second issue comes from still 
farther north, while the third issue is made up from 
birds raised in the extreme northern parts. 
A period of four to five days elapses between each 
of these issues, but the bluewings are among the first 
of the warm-weather birds to migrate southward, as, 
upon the other hand, they are the last to arrive in the 
spring, 
The migration of the woodduck is marked by their 
assembling in certain beds or patches of willows, buck- 
brush, etc., late in the afternoon, arriving by singles, 
pairs and little flocks: and they are gone before day- 
break. 
The redleg mallard migrates all the day and night 
in large flocks, which are plainly to be seen, especially 
during a change in the weather, with cold north winds; 
this occurs in October, when the frosty nights appear. 
The pintails and baldpates frequently come down to- 
gether. They collect, like the teals, in open water; 
only they do so in a shorter time and depart through 
the night. 
