Aye - 1933. 63 THOMPSON CANYON WALKER BASIN OCT. 20, 1933. We would probably many other new birds. Almost every trip to the creek produced new specimens. Basin Creek is dry above a point directly north of here. A big open space between here and the creek has several hot springs in it. It is the water from these springs which starts the water in the creek. There is also a large spring about 75 yards above our camp which flows into Basin Creek about a mile below. Pigger pines and willows are the chief vegetation of the creek bottom, while occasional Ponder pines, yellow pines and cotton- woods fill in. The spaces on either side are characterized by a blue oak, rabbitbrush association. We have taken a pretty fair representation of mammals from here, as the census sheet shows. Dipods are more common than than pronghorns. Proc. m. sordidus is the most common of the three species of pronghorns here. We took 10 specimens of Proc. truei, which, I believe, is rather good. We only got one or two Cimictus, if that is so they are Cimictus. Prognathus are scarce, and were found in almost every vegetative association.