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 158 THE CONDOR VoL. X (uerquedula cyanoptera. Cinnamon Teal. Migrant. Altho this should be one of the commonest ducks. of the County the vriter has only two records, both from the Plateau Valley. Mr. Smalley reports geeing them several times on a small reservoir at the head of the Valley at about 6,500 feet and Dr. Watson says they occur regularly along Plateau Creek at about 6,000. Spatula clypeaha. Shoveller. Migrant. Both Mr. Sinalley and Dr. Watson report this bird from Plateau Valley but I have no records of it occurring in the lower portions of the County altho it undoubtedly is not uncommon there dur- ing spring and fall. Dafila acuha. Pintail. Migrant. Mr. Sullivan classes the Pintail as a rather common migrant. He says, "I have seen flocks of Pintails as early as February 27 (1904). On March 6, 1903, after the great cold spell of January and February I saw four flocks averaging 20 to 30 birds each. Have seen them returning Nov- ember 4 (1904). Saw several flocks on October 18, 1904." 'Dr. Watson reports it as a regular migrant in Plateau Valley from 6,000 to 6,500 feet. Marila americana. Redhead. Migrant. Mr. Sullivan has seen them both in spring and fall migration: in the fall from September 28 to October 22, and in the spring ou February 27 and March 6. Mr. Sinalley reports a good many taken on the lakes on the Graud Mesa during the fall and Dr. W. V. Watson gives it as a regular' migrant in Plateau Valley. Marila vallisneria. Canvasback. Migrant. Mr. Sullivan reports a flock of about 60 birds seen on the Grand River near Grand Junction February 20, 1904, and Mr. Smalley says they are occasionally taken on the lakes on the Grand Mesa. They probably occur regularly in migration tho not in any abundance. [3tIarila marila. American Seaup Duck. Prof. Cooke says, "Occurs on both sides of the range but never common anywhere."] [larila affinis. Lesser Seaup Duck. Probably occurs regularly tho rather rarely during migration.] [Clangula islantlica. Barrow Golden-eye. Carter found this duck breeding at Brecken- ridge where it was a summer resident. Probably occurs regularly but rarely in Mesa Connty during the summer, and more commonly during migration.] [haritonetta albeola. Buffie-head. Occurs thruout the State in migration. Probably occurs in some abundance during certain periods of the spring migration.] [Histrionicus histrionicus. Harlequin Duck. Cooke records this bird as a breeder in western Colorado at the higher altitudes. Probably occurs rarely both as a breeder and during migration.] [Frismatura jamaicansis. Ruddy Duck. The Ruddy undoubtedly occurs during migra- tion as commonly as the other species of ducks and its ,absence from this list can only be ac- counted for by the small amount of infornmtion available. It is not improbable to expect that it will yet be found breeding within the County.] Chen hyperb0rea. Lesser Snow Goose. Migrant. Mr. Sullivan reports two flocks of migrants at Grand Junction, one March 4, 1904, and one October 20, 1904. They probably occur more or less regularly in migration. Branha canadensis. Canada Goose. Migrant. Mr. Sullivan reports seeing two large flocks pass over Grand Junction March 18, 1904, but has never seen them in the fall. Mr. Peter Lefever and Mr. John Fitzpatrick have both seen it occas- ionally in migration in Plateau Valley, but have not noted it in late years. [Branta canatlensis hutchinsii. Hutchins Goose. This species tho undoubtedly occur- ring regularly within the County is in all probability confused with the typical form by hunters. It is probably somewhat rarer than {he Canada Goose.] B0haurus lentigin0sus. American Bittern. Mr. Sullivan classes this bird as scarce and says, "I saw two pairs along the slough south of Grand Junction dur- ing the summers of 1903 and 1904. Do not know that they breed." Ardea her0dias. Great Blue Heron. Summer resident; not uncommon, in mi-