Marshall, 1938 CATALOG Otus flammeolus Big Meadow, 7659 ft., Sequoia Nat. Forest, Tulare Co., Calif. July 10-||Although owls at Whitakers in the transition zone have ceased the major pt. of their mating activities, as evidenced by their discontinuance of regular calling, and their failure to answer imit ated hoots; the owls at Big Meadow, in the Canadian Zone (Jeffrey Pine, Lodgepole Pine, Red Fir) are still at the hight of the "hooting period". Males hooted steadily and surrounded me when I entered their territor ies (hooting), and also were attracted by imit- ated female calls and by the actual calls of one female. This is the first locality where a female has been observed and followed by her calls for a long period of time. Also this locality has the most amazingly large population of Screech Owls of any yet worked, surpassing even that of Meadow Flat, at 5000 ft. The cause for the still great activity among the owls is, of course the usual lag of the seasons in the higher zones - the dense population may indicate a population center in the Canadian Zone with a tapering off in Transition and Hudsonian. Eight males & 1 female found in area abou 500 yd. by 500. Included flat country along a slow, winding stream - open stand Lodgepole Pines and immense Red Fir, open bare ground; and a grnite hill slope with very open stand J Jeffrey Pine and rocks & manzanita beneath. Owls not restricted to either type. Gibbous Moon - clear, calm. Observations from 9PM to 3 AM. During supper thought heard male far to north. After supper, called up one male a few paces N camp. Soon another, then another came. All three apparently attracted by my hoots. Stayed high in Red Firs and hidden in interiors. Could not locate with flashlight. Soon had a forth. None in same tree at same time. All with- in clear hearing dist. Trjed stunt of leading them along into low trees. Very successful. From the campfire called one that had been high in a Red Fir 60 yd away to a low Lodgepole Pine 15