. Bird studies; an account of the land birds of eastern North America . herea loose structure of grasses and feathers serves as a nest. Four to eight Across the Fields. 229 white eggs are laid, which are nearly three quarters of an inch long and abouthalf an inch broad. These Swallows are found througfhout the United States at larg-e. Inthe area under consideration they are found as far north as Connecticut andSouthern Minnesota, breeding locally from these points, southward into Mex-ico. They winter in the Tropics. The Bank Swallow is a smaller bird than the Rough-winged Swallow,about five in
. Bird studies; an account of the land birds of eastern North America . herea loose structure of grasses and feathers serves as a nest. Four to eight Across the Fields. 229 white eggs are laid, which are nearly three quarters of an inch long and abouthalf an inch broad. These Swallows are found througfhout the United States at larg-e. Inthe area under consideration they are found as far north as Connecticut andSouthern Minnesota, breeding locally from these points, southward into Mex-ico. They winter in the Tropics. The Bank Swallow is a smaller bird than the Rough-winged Swallow,about five inches and a quarter in length. They are uniform dull grayishbrown above, darkest on the head and wings and lighteston the rump. The throat and lower parts in general arewhite. There is a broad band in color like the upper partsacross the breast and continuous with an area of the same color on the birds are much like the adults but have the feathers of the shoul-ders and the rump edged with buffy or grayish white. Bank Swallow. Clivicola riparia (Linn.).. BANK SWALLOW. These birds are gregarious, breeding locally in suitable localities wheresand banks afford the places adapted for their burrows. In such locationsmany birds form breeding colonies. The nest is a loose structure of grassesand feathers at the bottom of a burrow two or three feet deep excavated bythe birds. The eggs vary from four to six in number and are white in are nearly seven tenths of an inch long and a little less than half an inchbroad. The Bank Swallow has much the same distribution in Eastern NorthAmerica as the Rough-winged Swallow, but extends farther north. The Bird Studies. birds are found throughout the Northern Hemisphere. They breed fromthe middle districts of the United States north to the tree Hmit. They win-ter as far south as Brazil. Among the swallows of our region the White-bellied Swallow is notice-able. It is a field or marsh bird in its feeding habits for a large
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