88 BRIGHT. FEATHER 
any part of the United States in winter ; on the contrary, at that season 
it is present in tropical America as far south even as Ecuador. From 
such resorts it moves probably in February, as we hear of its reaching 
our southern border at the beginning of the following month. It does 
not become generally distributed in this country, however, until some 
time in April, becoming numerous in the Middle districts after the 
middle of this month, reaching New England and our northern border 
about the first week in May, and then soon gaining the limits of its 
northward migration. Its movements are quite regular, and at the 
height of the season the bird is too abundant in all suitable localities to 
be overlooked. The return movement is rather early, all the birds, as 
a rule, passing through the Middle districts during the month of Sep- 
tember. Itis not so common a bird, apparently, in the West as the East, 
and the nature of the Rocky Mountain region either interferes with the 
orderly north and south movement, or else obscures our recognition 
of the periods of migration, It is well known to occur westward into 
the Middle Province, but has not been observed in the Pacific slopes. 
North, its range is probably nearly coincident with the limit of large 
trees: such extreme of distribution does not seem to be gained until the 
latter part of May, and its coming must be immediately followed by 
pairing and nesting, as the eggs have been found at Fort Resolution by 
the middle of June. While I was collecting at Pembina, on the Red 
River of the North, latitude 49°, during the whole month of June the 
Redstarts were very abundant in the heavy timber of the river-bottom, 
in fullsong, pairing and nesting, and at the height of their sexual irri- 
tability. I never saw it in Arizona, nor have the later students of the 
ornithology of that Territory found it, though we have advices of its 
occasional appearance in New Mexico, and of its presence in consider- 
