In Washington Territory this species is stated by Dr. Suckley to be more abundant in the sparsely wooded districts of the eastern base of the Cascade Mountains than in the Coast Range. He found it exceedingly abundant at Fort Dalles and along the eastern base of Mt. Adams. They arrive about the 15th of May, and were very common among the low oaks of that region. He speaks of its song as very pleasant, and especially melodious early in the morning, when the bird is generally perched on the sunny side or top of an oak. At Puget Sound, according to Dr. Cooper, these birds do not arrive until the beginning of June, and are at no time very common there. He describes their habits as similar to those of the _spurius_, they being shy and difficult to discover among the foliage. Their song is more like that of the Baltimore, loud, clear, and varied. In his Report on the birds of California, Dr. Cooper states that these birds arrive at San Diego, from the south, about March 1; but at Fort Mohave, one hundred and sixty miles farther north, he saw none until a month later. Like the Baltimore Oriole, they resort to the open roads, gardens, and orchards, putting themselves under the protection of man, and repaying him both by their sweet melody and their usefulness in destroying insects. They keep chiefly in the trees and rarely descend to the ground, except to collect materials for their nests. These are suspended from the end of a branch, and are constructed of fibrous grasses, horse-hairs, strings, bits of rags, wool, hempen fibres of plants, etc. At times only a single material is used, such as horse-hair. These nests are neatly and closely interwoven in the form of a deep bag or purse, and are suspended by the edges from the forks of a branch, near its end. They have usually a depth of about four or five inches, and a diameter of about three or three and a half. In most cases they are largely made of the flaxen fibres of wild hempen plants, and by strings of this are firmly bound around the ends of the twigs to which they are suspended. They are lined within with fine, soft vegetable down. In some nests the inner bark of the silkweed largely predominates. Dr. Cooper states that the eggs of Bullock’s Oriole are, in number, from four to six. He describes them as bluish-white, with scattered, winding streaks and hair-lines of black and reddish-brown near the larger end, measuring .98 by .60 of an inch. In the southern half of California they are laid in the first or second week of May. At Santa Cruz, in 1866, he did not observe any of this species until April 3. Mr. Allen did not meet with this species in Western Kansas, and it is not included in his list of birds observed by him near Fort Hays. At Ogden and Salt Lake City, in Utah, which he reached the first of September, Bullock’s Oriole had already migrated southward.