12 BULLETIN 1145, U. S. DEPARTMENT OF AGRICULTURE. 



stream or near the river below Corinne. Two were secured on 

 November 5 and two on November 12. 



Among 16 other records for Utah, 6 came from the vicinity of Bear 

 River above its mouth, or its larger tributaries within a radius of 

 50 miles. Five of these returns were secured between October 1 and 

 17 of the year of their release. A single individual shot November 

 22 near Honeyville was reported as thin and poor, and may have been 

 diseased or injured in some way. One was killed near the Hot 

 Springs, north of Ogden, on November 18, and 1 near the mouth of 

 the Weber River, on October 29. From a little farther south 3 were 

 reported from Syracuse, near the border of Great Salt Lake, 2 birds 

 shot in company on October 14, and 1 on October 20; 2 were shot 

 on October 2 in the sloughs west of Salt Lake City and another in 

 the same vicinity about the middle of November. In the Narrows of 

 the Jordan River, 20 miles south of Salt Lake City, 1 was killed 

 December 24, 1915, while another was recorded from the Sevier River, 

 near Gunnison, Utah, October 1. 



Three marked redheads were secured in eastern Idaho, all in or near 

 the drainage of Snake River. Two of these were shot on October 

 1 and 15, respectively, and 1 was taken in Bingham County on De- 

 cember 8, more than two years after it was released. 



Scattered records from east of the Rocky Mountains have consid- 

 erable value, as they indicate a line of flight to a winter range. One 

 bird released September 27, 1916, was killed about November 27, 

 near Ordway, in the drainage of the Arkansas River, on the plains 

 of eastern Colorado. Another, banded October 23, 1916, was secured 

 near O'Donnell, Dawson County, western Texas, on November 22. 

 A third, set at liberty August 20, 1916, was killed near Nashville, 

 Kingman County, south central Kansas, April 21, 1917, probably 

 while in northward migration. The last of these distant records, 

 one without apparent connection with the others, is that of an indi- 

 vidual released between August 27 and September 27, 1916, and 

 killed January 25, 1919, on the Florence Reservoir, near Florence, 

 Ariz., in the Gila River Basin. 



The majority of redheads on the Bear River marshes leave in fall 

 migration between the 1st and 10th of September, and after that only 

 stragglers are found. Indications from returns of banded birds are 

 that the line of flight is eastward, probably to a wintering ground on 

 the Gulf coast of Texas, though no returns have actually come from 

 that region. It is possible that part of these birds travel northward 

 to the drainage area of the Missouri and then swing southward over 

 the plains, since two records come from eastern Idaho at the proper 

 season to support such belief. Release of young birds late in Sep- 

 tember, after the bulk of the species has left, may induce more or 

 less aimless wandering among some and account for part of the 

 scattered returns. There is a distinct movement southward along 

 the eastern shore of Great Salt Lake, however, for a distance of 60 

 miles, that may be an indication of a second line of southward flight. 

 December records for Utah and Idaho are perhaps from injured 

 individuals unable to perform extended nights. 



