In order that their double quartet of youngsters may be lined up for the egg harvest, the Magpies take an early start at home building. April is the nesting month, but I have two records for March 30th,—one of five eggs at Chelan, and one of eight in Yakima County. In the latter instance the first egg must have been deposited not later than March 18th. And because the season affords him no protection, the Magpie resorts to two expedients in nest building in lieu of concealment: he first seeks retirement, the depths of some lonesome swamp, an unfrequented draw, or wooded spring, in the foothills, and then he erects a castle which would do credit to a feudal baron. The nest is a ball of interlacing sticks set about a hollow half-sphere of dried mud. The amount of labor expended upon one of these structures is prodigious. The greasewood nest shown in the accompanying cut is three feet deep and two feet thru, and the component sticks are so firmly interwoven that no ordinary agency, short of the human hand, can effect an entrance. The bird enters thru an obscure passage in one side, and, if surprised upon the nest, has always a way of escape planned thru the opposite wall. The mud cup is carefully shaped with walls an inch or two in thickness, a total breadth of eight or ten inches, and a like depth. In the best construction this cavity is filled to a depth of three or four inches with a loose mat of fine twigs of a uniform size. Upon this in turn is placed a coiled mattress of fine, clean rootlets, the whole affording a very sanitary arrangement. Another fortress, of single construction, was four feet deep and three and a half feet thru; and that, too, after making liberal allowance for chance projections. The component sticks measure up to three feet in length and three-quarters of an inch in thickness. Nests are repaired and re-occupied year after year; or if they fall into hopeless decay, new structures are erected upon the ruins of the old. The tenement photographed on Homely Island is a double nest (it looks triple, but the upper third is merely the dome for the central portion, or nest proper), and measures seven feet from top to bottom. It contained seven eggs on April 24th, 1905, but altho the oölogist is very fond of little Magpies’ eggs, he left these as a tribute to Mr. and Mrs. Cheops. [Illustration: _Taken in Benton County._ _Photo by the Author._ MAGPIE’S NEST ON HOMELY ISLAND.]