Northern Prairie Wildlife Research Center
Breeding Range. (Fig. 112). Fairly common throughout the state. Breeding populations are represented by scattered isolated pairs and by semi-colonial groups of pairs.
Breeding Habitat. Generally found in the vicinity of barns, sheds, outhouses, abandoned farm dwellings, country school houses, bridges, highway overpasses, and large culverts.
Nesting. Breeding season: Mid-May to mid-September; peak, late May to mid-August. Breeding territories were established as early as May 7 [1970] in Stutsman County (H. A. Kantrud). Extreme dates of active nests (30 nests): May 20 [1915] in Richland County (H. H. Sheldon) to September 12 [1915] in McKenzie County (R. Kellogg). Extreme egg dates (6 nests): May 20 [1915] in Richland County (H. H. Sheldon) to August 4 [1916] in Ramsey County (F. M. Bailey). Late nests occupied with young were recorded on August 26 [1949] in Stutsman County (Webster 1952) and on September 12 [1915] in McKenzie County (R. Kellogg).
Nests are usually situated on supporting rafters inside of buildings or on girders and other supporting structures under bridges. Allen (1874), during his expedition of 1873 through western North Dakota, found nests plastered against rocks under projecting ledges of steep slopes.
Indicated clutch size (7 nests): 3 to 5 eggs; mean, 4.2 eggs.
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| Figure 112. Breeding Range of Barn Swallow. |
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U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/bbofnd/species/6130.htm
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