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ing of spring migration in 1884. No notes were contributed on the 

 movements of Ducks south of latitude 38° ; hence nothing can be said 

 of their whereabouts until the first full wave of migration brought them 

 to Cimarron, Kans., February 26. The next day they were seen at 

 Shawneetown, 111. This was the opening day of spring migration at 

 Saint Louis, Mo. The advance continued for several days. Ducks were 

 reported from Griggsville, 111., February 28; and during the first five 

 days of March, from Mount Carmel, Mo., and Fayette, Mo. (two observ- 

 ers); Ferry, Iowa; Mount Pleasant, Iowa; Knoxville, Iowa; Sioux City, 

 Iowa; Emporia, Kans. ; and Unadilla, Nebr. It will be noticed that this 

 is the same bird wave which is described under the migration of the 

 Canada Goose, but while the Geese pushed on into Dakota, no Ducks 

 were noted north of Sioux City. Yet, contrary to the usual rule, the van 

 in the West was farther north than in the East, just as it was with the 

 Geese, and this difference became still more pronounced when the next 

 wave (that of March 11) carried the advance guard along the plains to 

 Heron Lake, Minn., while nearer the Mississippi it pushed forward 

 but a few miles to Morning Sun, Richmond, Newton, and Grinnell, 

 Iow^a. Immense numbers of Ducks were on the wing March 11 through- 

 out the country from Griggsville, 111., to Newton, Iowa; but very little 

 northward advance was made. During the spring migration of 1884 

 it w r as noted by Mr. Miller that Ducks came to Heron Lake, Minn., 

 from the west, as if they were a part of the Missouri river flight. In 1885 

 they must have come from the same direction, since in the region south 

 of Heron Lake, in Iowa, at an equally favorable locality (Emmetsburgh), 

 none were seen until about two weeks later. There can be no doubt 

 that in the spring of 1885 the flight of Ducks and Geese along the Mis- 

 souri river was several days earlier than at corresponding latitudes on 

 the Mississippi river. Another wave occurred in Iowa March 14. It 

 was noted at Iowa City and Laporte City, Iowa, and by both observers 

 at Tampico, 111. The next day the temperature at Saint Vincent, Minn., 

 was fourteen degrees below zero, and the hosts of Ducks in central Iowa 

 returned south, following the example set March 14 by the Ducks at 

 Heron Lake. They returned March 25, and were noted March 26 at 

 Emmetsburgh and Williams town, Iowa, Huron, Dak., and Stoughton, 

 Wis. March 30 and 31 they appeared at New Cassel, Wis., Fridley, 

 Minn., and Menoken, Dak. Thus the western right extended still fur- 

 ther north than the eastern. April 1 they were reported at Argusville, 

 Dak. ; April 5, at Larimore, Dak., and Two Rivers, Manitoba; and April 

 7 at our most northern station, Oak Point, Manitoba, in latitude 50° 30'. 

 In the fall of 1885 they were still at Heron Lake, Minn., as late 

 as December 1. The last one was seen at Lanesboro, Minn., Novem- 

 ber 22 ; at Grinnell, Iowa, November 4 ; and at Fern wood, 111., No- 

 vember 7. The first migrant was reported from Grinnell, Iowa, Sep- 

 tember 10; Fernwood, 111., September 12 ; Iowa City, Iowa, October 6; 

 Saint Louis, Mo., September 6, with an increase September 22 ; Shaw- 



