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 192 THE CONDOR Vol. XI sloughs, and various water plants remain green throughout the winter. In such of these places as are well sheltered by thickets of willows, Mallards were usually found in flocks of from two or three to a dozen. Coyotes, lynxes and mink prey on these winter birds, and, with the long cold winter, its. a wonder any survive. Gallinago delicata. During December several of this species were seen and two taken along Wood River. They keep close to the open spring holes feeding under the overhanging mud banks. Dendragapus obscurus richardsoni. Common throughout this entire range. In Idaho this species nests in the lower foothills, mostly in the open sage-covered areas, and often several miles from the timber. As soon as the young begin to fly they start moving higher up the mountains, and by the time.snow comes are all well up on the ridges. During October I flushed several small flocks along Spring Creek at about 6500 feet elevation, but not a single bird could be found there two' weeks later. On Boyle Mountain, at 8000 feet, November 5, I saw at least one hundred individuals in a single flock, and during December I found them common on the pine covered ridges at from 7000 to 8000 feet. Canachites franklini. This species is found in the Hudsonian Zone near the head of Wood River and on the higher ridges along Baker Creek. I did not find a single specimen myself but an old trapper, Mr. Zanchie, with whom I hunted in November, has killed several on Baker Creek. Known all over Idaho as "Fcol Hen." Accipiter velox. A single example seen near Ketchum on November 13. Buteo swainsoni. Common throughout all the region I covered. Several were caught in steel traps set for mink along Rook's Creek. On October 31 I flushed one from the thick willows on Spring Creek where it had killed a Rich- ardson Grouse and was in the act of making a meal. A charge of n. 8 shot stopped any more such killings and added another specimen to my list. Aquila chrysaitos. A single bird seen October 29 near Ketc.hum, hunting rabbits over the sage plains. I saw no more in the mountains but was told that several pairs breed along Spring Creek. I saw a nest on a high cliff on Baker Creek, where Mr. Zanchie, a trapper, told me a pair nested during the summer of 1910. Bubo virginianus pallescens. Fairly common throughout the timbered sections. I heard the call of this species very often during my trip, and one was collected on Wood River November 21. Ceryle alcyon. Several seen along Wood River during November and December. A telephone wire across the river a few miles below Ketchum was a favorite perch for one of these fishermen. I have seen them dive into the icy water when the thermometer registered zero. Dryobates villosus monticola. Common along the various streams in the spruce forests, but not seen in the cottonwoods along Wood River. Dryobates pubescens medianus. Common in the aspen and cottonwood thickets along Wood River, but not seen in the spruce forests anywhere in the mountains. Picoides americanus dorsalis. Only three seen, all in the Hudsonian Zone. One taken November 3 at about 7500 feet. Phloeotomus pileatus abieticola. Fairly common in the forests along Spring Creek. They keep well up on the ridges and are seldom seen in the can- yons. Pica pica hudsonia. Common in the mountains about all mines and