W.B. Davis 1935. Head Big Lost River, 7890 ft., Custer Co., Idaho. July 14 about 30 ft. up the hillside and sat up with its ears and nose actively moving. I shot it and found that it was completely blind in one eye and nearly so in the other. About 30 large Ornithodorus (ticks) were attached around the eyes and chin. The lids of one eye were sealed with dried puss and when I cut into the cavity about a teaspoon full of puss exuded. The cornea of the eye was opaque, and had the animal gotten rid of the ticks I doubt that that eye would ever have been functional again. The lids of the other eye were almost swollen shut. I picked off all the Ornithodorus, each about the size of a shoe button and placed them in spirit. I also found several wood ticks in the fur, four of which were saved. I didn't relish the idea of skinning the animal so saved the skull only and used tweezers in handling it. There were no ticks attached to the ears as I have found them on Sylvilagus and Lepus californicus. I shot a Vermithrush in a thicket of Lodge Poles near a little swamp.