the one photographed (fig. 53), and may be regarded as being typical of those described by Mr. Gilman. Both nests contained three incubated eggs. The skeleton or framework of the photographed nest is bulky, strong and well anchored amid the many ramifications of the spiny cactus. The lining is made entirely of a fine, gray, woolly plant which grows in abundance in the locality and is pulled up entire by the bird. This material is firmly pressed together and forms a remarkably felt-like padding about one-half inch in thickness. The light gray color of this lining contrasts well with the brown framework and the light blue of the eggs. (See fig. 54.) At Cabezon the Pasadena Thrasher (Toxostoma redivivum pasadenense) occurs also. Nests of this bird were found to differ radically from those of the Leconte Thrasher in not having the felt-like lining. Colton, California, August 24, 1916.