516 
ECONOMIC RELATIONS OF OUR BIRDS. 
Food: From Uvo stomachs were taken sixteen small dragon-flies, seven wee¬ 
vils, all Brevirostres, three rove-beetles, one other beetle, two hymenopterous in¬ 
sects, one belonging to the Evaniidce, the other having an extent of ,22 of an 
inch, three winged aphidm, and one dipterous insect equal in size to the Avheat- 
midge. In the stomachs of two others were found five weevils, five lamellicoin 
beetles, four small dragon-flies, one heteropterous insect belonging to the tribe 
Obscuta, and Uvo winged ants. Two other specimens had eaten nineteen winged 
aphidse, five small dragon-flies, nine small beetles, among them a click-beetle 
f Elater hieroglyphicusJ, a weevil and a lamellicorn beetle, and two ichneumon- 
flies. Of ten other specimens examined, six had eaten beetles; two, small grass¬ 
hoppers; and one, only dipterous insects, among them crane-flies. 
In the fall, principally myrtle-berries (Wilson). Insects and myidle-beriies 
(De Kay). 
63. Petrochelidon lunifrons (Say), Cab. CLIFF SWALLOW; EAVE 
SWALLOW. Group I. Class b. 
The Eave Swallow is not uniformly distributed throughout the state, but in 
certain localities it is abundant. In Jefferson or Walworth county I have never 
met with them, but in Green Lake and Waupaca they are common. As many 
as twenty-five nests, nearly all occupied, have been counted under the eaves of 
a single barn. They affect, chiefly, dry upland fields, where they skim about 
over wheat fields and meadows. They may frequently be seen sweeping close 
to the ground over a freshly cut piece of clover before the grass has been taken 
up, often dipping into the grass for insects. 
Food: From the stomach of a specimen shot while skimming over a field of 
wheat were taken tAvelve leaf-hoppers, a green and brown species, seven dipter¬ 
ous insects, one of them a large crane-fly, six small beetles, and two medium¬ 
sized ichneumon-flies. 
Dr. Cooper states that he has seen this species catching small grasshoppers 
when they were swarming on a dry hillside. Of five specimens examined by 
Prof. Forbes, four had eaten hymenoptera, ants, wasps, ichneumons; fiA'e, 
beetles, ground-beetles, Nititulidse, fungus-beetles, rove-beetles, leaf-chafers, 
curculios and long-horns; one, diptera; and two, hemiptera. 
64. CoTYLE RiPARiA (LiNN.), BoiE. BANK SWALLOW. Group II. Class a. 
The Bank Swallow still clings to its ancient breeding habits, and places its 
nest in burrows made in sandy banks and cliffs, usually adjacent to sti earns or 
lakes, but sometimes where a stone quarry has been opened. Its disti’ibution is, 
therefore, local during the breeding season, and determined by suitable breeding 
places. It is social in its habits, and a hundred families often breed together 
in a single bank. Wilson states that the Crow sometimes watches at the en¬ 
trance to their nests for the young birds when they emerge. 
Food: Small hymenopterous insects, which they take on the wing (De Kay). 
65. Stelgidopteryx serripennis (Aud.), Bd. ROUGH-WINGED SWALLOW. 
Group II. Class a. 
A single specimen of this species was taken while skimming about over Fox 
river at Berlin, May 2, 1874. It was in company with a dozen more Swallows, 
probably of the same species. It is apparently uncommon here, and Mr. Nelson 
