_Spring._--The last of the dowitchers which winter in Florida, or migrate through there, leave for the north during May, though a general northward movement has been going on during April. The earliest birds sometimes reach Massachusetts by May 1, but usually the main flight comes along about May 20 and lasts for about ten days. Audubon (1840) observed large numbers of this species flying eastward along the coasts of Louisiana and Texas during April. And Arthur T. Wayne (1910) says that "these birds migrate to their breeding grounds in the far north between May 1 and 15, and when the tide is low in the afternoon and a light southerly wind prevails, flock after flock can be seen migrating in a northwesterly direction. I have yet to see these birds migrate along the coast line in the spring." This would seem to indicate an overland route from South Carolina, in addition to the Atlantic coast route referred to above. Professor Rowan writes to me that dowitchers are common on both migrations in Alberta, and says: In a long series of spring and fall skins, there is every gradation from the supposed typical eastern form (_griseus_) to the so-called long-billed form (_scolopaceus_). Bill lengths and colors do not correspond as they are supposed to do. As far as this district is concerned, there is absolutely no evidence in support of the splitting of this species into two races. The only two really long-billed birds that have been taken, were deliberately collected from a flock as their bills were so obviously longer than those of their companions even in life. Intermediate lengths, forming a nicely graded series, have been secured. The colors and markings of the spring birds are infinite in variety, and do not correspond to the bill lengths that should go with them. There is a northward migration through the interior, in which this form is undoubtedly represented, but to what extent it is hard to tell, as it is impossible to separate all the records. Both forms are recorded on migrations in California and British Columbia. _Courtship._--Richard C. Harlow has sent me some brief notes on the courtship of this species, as seen on its breeding grounds in Alberta. There were at least eight pairs of birds in the vicinity and they kept up their courtships until he left on June 9. The males apparently outnumber the females, for at least two females were seen surrounded by little groups of three or four males, frequently singing and displaying. "The male frequently strutted like a woodcock and displayed, and several times arose and gave his flight song, a clear, liquid, musical, contralto gurgle." Professor Rowan thinks that both sexes indulge in this song. _Nesting._--The breeding range of the eastern dowitcher is imperfectly known or not known at all, unless we include the birds which breed in Alberta under this form, where in my opinion they belong. Prof. Wells W. Cooke (1912) writes: