Citellus 11 mi. W and 7 mi. S Mitchell, Wheeler Co., Oregon. June 12, 1938 There are a number of meadows about camp but only one has a population of ground squirrels. It is a very extensive meadow with a gently slope surrounded by easy series of ridges covered sparingly with Yellow pines. These ridges are cut into by small draws, 30 to 50 yards deep and on their banks and the spurs of the intervening ridges the squirrels have dug in. This squirrel has two calls, a single whistle and a wobbled whistle or screech. The first is given either as a sudden urgent warning and then modified as to intensity as a milder warning that danger is present. The second wobbled whistle is given after the animals have taken cover and are viewing the danger from the proximity of their burrows. June 13, 1938 I tried shooting some. They are unbelievably tough and keep going with heavy loads of shot in them. I set at first that I was missing or too far off. Was using #10 in a 16 gauge shotgun. So I stalked as and got it at 20 yards, It literally blew to pieces. The only conclusion is that a lethal load is not lethal until several minutes have passed. And too heavy a load a close range makes them poor specimens. They should be trapped. I got one finally far from cover and caught it before it escaped.