July 19 1959 give the call when they fly of their own free will. Then at times they will give series of descending whistles. The bird is definitely wary on the approach of a person. Giving Pigny owl calls one this up a flock of small birds the composition of which doesn't vary much. The usual species are junco, Mt. Chickadee, Chipping Sparrow, Red-faced Warbler, Olive-Warbler, Rufus- crowned Sparrow, Spotted Towhee, Creeper, Mexican Blue bird, Bush-tit, Bridled Tetra.