158 THE CONDOR Vol. X 



Querquedula cyanoptera. Cinnamon Teal. Migrant. Altho this should be 

 one of the commonest ducks of the County the writer has only two records, both 

 from the Plateau Valley. Mr. Smalley reports seeing 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 clypeata. Shoveller. Migrant. Both Mr. Smalley 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 acuta. 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 Januar}^ 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 on February 27 and March 6. Mr. Smalley reports a good many taken on 

 the lakes on the Grand 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. 



[Marila marila. American Scanp Unck. Prof. Cooke says, "Occurs on both sides of the 

 range but never common anywhere."] 



[Marila affinis. Lesser Scaup Duck. Prolmbly occurs regularly tho rather rarely 

 during migration.] 



[Clangula islandica. Barrow Golden-eye. Carter found this duck breeding at Brecken- 

 ridge where it was a summer resident. Probably occurs regularly but rarely in Mesa County 

 during the smnmer, and more commonly during migration.] 



[Charitonetta albeola. Buffle-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 rarelj' both as a breeder and di:ring 

 migration.] 



[^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 l)y the small amount of information available. It is not improbable to expect that it 

 will yet be found breeding within the County.] 



Chen hyperborea. 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 regitlarh^ in migration. 



Branta 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 canadensis hutchinsii. Ilutchins Goose. This species tho undoubtedl}^ occur- 

 ring regularl}' within the County is in all probabilit}^ confused with the tj'pical form by hunters. 

 It is probably somewhat rarer than the Canada Goose.] 



Botaurus lentiginosus. 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 herodias. Great Blue Heron. Summer resident; not uncommon, in mi- 



