These birds were also found abundantly at Fort Simpson and Great Slave Lake by Mr. Robert Kennicott and Mr. B. R. Ross; at Fort Anderson, Anderson River, Swan River, and in various journeys, by Mr. R. MacFarlane; at Fort Resolution, Fort Good Hope, La Pierre House, and Fort Yukon, by Mr. Lockhart; at Peel’s River, by Mr. J. Flett; at St. Michael’s, by Mr. H. M. Bannister; and at Nulato, by Mr. W. H. Dall. They were observed at Fort Simpson as early as May 17, and by Mr. Kennicott as late as September 17. Mr. Dall states that at Nulato he found this Sparrow in abundance. It arrived there from the 10th to the 15th of May. It breeds there, and its eggs were obtained on the Yukon River. In the month of August in 1867 and of July in 1868 it was abundant at the mouth of the Yukon and at St. Michael’s. One was also shot at Unalaklik. The birds seemed to prefer thickets to the more open country. Mr. Bannister did not find it abundant. He shot only one specimen during the season, in an alder thicket near the fort; and Mr. Pease, who was familiar with the species, only saw a single individual. According to the reports of both Mr. MacFarlane and Mr. Kennicott, the nest of this species was found both on the ground and in trees. In one instance it was in a tree about eight feet from the ground, and in its structure was said to be similar to the nests of _Turdus aliciæ_. They were nearly all found after the middle of June, a few as early as the 7th. One was found on the ground at the foot of a tuft of dwarf willows, which helped to conceal it from view. This was composed of coarse hay, lined with some of a finer quality, a few deer-hairs, and a small quantity of fresh and growing moss, intermingled together. In speaking of this nest Mr. MacFarlane states that all the nests of this Sparrow he had previously met with had been built in the midst of branches of pine or spruce trees, and had been similar to those of the _T. aliciæ_, which, in this instance, it did not resemble. He adds that this species, though not numerous, extended quite to the borders of the wooded country, to the north and northwest of Fort Anderson. Afterwards he observed several other nests on the ground, all of which were similar to the last, and it is by no means impossible that in certain instances these birds may have occupied old nests of the _T. aliciæ_, and used them for purposes of incubation. Richardson states that its nests are constructed in a low bush, and are made of dry grass, hair, and feathers. He states that the eggs are five in number, of a pale mountain-green tint, and marbled with irregular spots of brown.