280 
TRANSACTIONS OF THE 
50. Cotijle riparia Boie. (229.) Bank Swallow. Thia species 
is Ibniul, ill favorable situations on the Yukon, in immense numbers. I 
have counted, on the face of one sand-blulf, near Nuklukahy^t, over 
700 nest holes made by this bird, and all apparently occupied, so that 
the bluft" presented the appearance of an immense honey-comb alive 
•with bees. The eggs are from two to six in one nest, laid on a very 
small bed of fine twigs, without any straw or feathers. The excavation 
is from fourteen inches to two feet in length, and takes the bird about 
four days to make. They usually occupy their old nests, when in good 
condition. D. 
51. Ampelis garrtUus L. (232.) Waxwing. This bird is quite 
common near Nulato, but does not arrive till June 10th, or later. I 
obtained a number of skins from the Indians, taken during ray absence 
up the river. It breeds, and the eggs have been obtained at Fort Yukon. 
D. 
52. Collyrio horealis Baird. (236.) Shrike. One specimen was 
brought, frozen, by the Nowikakat Indians, when they came to Nulato 
in the winter, to trade furs. They represented it as very fierce, killing 
small birds like a hawk, and often fighting the crows. I have never 
seen it alive, and think it is not common. D. 
53. Ti'oglodiftes alascensis Baird, n, s. (269a.) The Alaska Wren. 
A single specimen of a very common little bird was obtained at St. 
George's Island, Behring's Sea. A number were shot, but were lost in 
the luxuriant growth of grass and weeds. It is found all the year round 
on the island ; breeds in May, building a nest of moss in the crevices of 
the rocks ; and, according to the Aleuts, lays six eggs. Eye black. (See 
Prof. Baird's paper.) D. 
54:. Troglodytes hyemalis Viell. (273.) Winter Wren. Four 
specimens of this species were obtained by Bischoff at Sitka, D. 
55. Parus atricapilltis Linn^. (290.) Black Cap Titmouse. Ob- 
tained a number of these birds December 12th, 1866, at Nulato. Not 
common there. They have also been received from Bischoff, from Sitka 
and Kadiak. D. 
56. Parus rufescens Towns. (295.) Chestnut-backed Tit. Bischoff 
obtained many specimens of this species at Sitka. D. 
57. JParus hudsonicus Forster. (296.) Hudsonian Titmouse. The 
commonest titmouse at Nulato. Plenty all winter, but in spring absent, 
and I never have been able to find either nest or eggs. Eyes black. 
D. 
