CHICAGO ACADEMY OF SCIENCES. 
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4:7. Hiriindo Jiorreormn Barton. (225.) Barn Swallow. May 
19th, 1867, at Nulato, obtained a specimen of this species; afterward 
others, from empty lodge. Lower Yukon. 
This species, together with IT. bicolor and S. lunifrons^ arrived at 
Nulato, in 186*7, about May 14th. A few stragglers arrived the previous 
morning. In 1868, two (lunifrons) arrived May 10th, but the greater pro- 
portion of them did not appear till the 16th. All the species occupy the 
old mud nests of lunifrons at first, but after a fortnight or three weeks 
they separate ; this species almost always building on a beam, or other 
support. Its nest is well made, containing a good deal of straw, and 
being lined with feathers, which is not the case with the other swallows. 
This species has often two broods in a season. D. 
Extremely abundant; nesting in the eaves of the buildings in and 
about the fort. This species made its first appearance on the 26th of 
May, and in two or three days nearly all the old nests were reoccupied. 
They left as suddenly, about the last of August or beginning of 
September. 
These birds were protected by the Russians, and had become so tame 
as to build their nests over the doors and windows, in some instances 
only seven or eight feet above the terrace or bank surrounding the build- 
ings, and within easy reach of a man's arm. In midsummer, when 
daylight lasted throughout the twenty-four hours, these birds retired 
regularly to I'oost at the usual time; and so trusting had they become 
that I have repeatedly stroked one, which used habitually to perch on 
the wooden shutter of the window of my room, without his attempting 
to fly away, or disturbing himself more than to move his head or arrange 
his feathers. Iris brown. B. 
Also obtained at Sitka, by Bischoff. 
4:8. Hiriindo lunifrons Say. (226.) Cliff Swallow. Eave Swallow. 
This is the most common species at Nulato, where the eaves of the 
fort, inside and out, are lined with their clay domes. It is also found 
at Fort Yukon, and the Redoubt, St. Michael's. The Indians say that 
before the forts were built, this bird made its nest on the face of some 
sandstone cliff, under some projecting fragment. 
S. horreorum frequently builds on the Indian caches, but I have never 
known this species to do so. D. 
49. Hirundo hicolor Vieil. (227.) River Swallow; White-bellied 
Swallow. This swallow is usually seen flying over the water of some 
of the smaller rivers. It is found from Fort Yukon to the sea, and is 
known to the Russians as the " river swallow." It is less common 
than any of the other species. It is regarded as a great delicacy by the 
old Indian women, who eat them, and pay high prices for them when 
killed ; which is seldom enough, as the bird is always on the alert. 
Also from Sitka, by Bischoff. D.. 
