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Mar., 1909 AMONG THE THRASHERS IN ARIZONA 53 twelve were found in March, ten in April, and five in May, the latest date being May 14. One nest in a cholla contained four young birds about half grown. Three weeks later another nest in the same cactus was found containing three fresh eggs. Possibly it was a second nesting of the same pair of birds. March 7 I removed a set of three eggs from a nest in a cholla, and on the 22d noticed some fresh grass lining in the nest. About a week later the nest contained two fresh eggs. In this case the birds evidently occupied the same nest a second time, some- thing I have rarely seen except among Raptores. Another nest, also in a cholla, was found containing the usual number of three eggs. A second visit to the nest showed two of the eggs broken and nest deserted. I removed the shells and re- maining egg and two or three weeks later found the nest again occupied by three fresh eggs, tho no Fresh lining or repairs could be detected. About three weeks afterward I investigated and found the eggs addled and nest again deserted. As CHOLLA CACTUS CONTAINING FIVE OLD CACTUS WREN'S NESTS, AND FOUR OLD AND ONE NEW NEST oF THE PALMER THRASHER the cactus was only a few yards from a trading post, and a few feet from a well- traveled road, the birds had probably been disturbed too often. This cholla was evidently a favorite nesting place as it contained at the time five old Cactus Wrens' nests and four old and one new nest of the Palmer Thrasher. The entire plant was less than five feet in hight. This thrasher is a dose sitter and when disturbed leaves the nest, but soon returns showing much concern. Both parents usually show up, approaching as near as six feet and uttering the usual two-syllabled call, tho sometimes using the guttural scolding note. The nest is a bulky affair but well built. The nest proper is three or four inches deep, inside measurement, and above this is a superstructure or rim from two to three inches high. Several nests seen measured over six inches deep. Rather coarse twigs are used in the construction and the lining is mostly of