. The birds of Illinois and Wisconsin. Birds; Birds. 302 Field Museum of Natural History — Zoology, Vol. IX. weeds and grass, usually in a marsh. The eggs are three (rarely 4) in number, pale olive gray (sometimes buffy white), marked and blotched with chocolate brown, and measure about x inches. "Rather common summer resident in this portion of the state, breeds in the numerous small reedy ; (Nelson, Birds N. E. 111., 1876, p. 147.) " Although the larger part are migratory, a good many still nest within the ; (Kumlien and Hollister, Birds of Wiscon- s
. The birds of Illinois and Wisconsin. Birds; Birds. 302 Field Museum of Natural History — Zoology, Vol. IX. weeds and grass, usually in a marsh. The eggs are three (rarely 4) in number, pale olive gray (sometimes buffy white), marked and blotched with chocolate brown, and measure about x inches. "Rather common summer resident in this portion of the state, breeds in the numerous small reedy ; (Nelson, Birds N. E. 111., 1876, p. 147.) " Although the larger part are migratory, a good many still nest within the ; (Kumlien and Hollister, Birds of Wiscon- sin, 1903, p. 12.) 26. Sterna hirundo Linn. Common Tern. Distr.: Ranges throughout eastern North America, breeding nearly throughout its range from Florida to the Arctic ocean; winters from Virginia southward. Adult in summer: Bill, red, broadly tipped with black; feet, red; crown, black; upper parts, pearl gray; under parts, pale ashy gray; feet, orange red. Adult in winter: Forehead and crown, white or grayish white; under parts, white; bill, blackish. Immature specimens have the upper parts mottled with buff or pale brown. The outer web of outer tail feather is darker than the inner web at all seasons. Length, about 15; wing, about ; tail, ; tarsus, about 7S; bill, Common Tern. The present species is not uncommon at times on Lake Michigan during the migrations, and a few remain to breed in Wisconsin. The. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cory, Charles B. (Charles Barney), 1857-1921. Chicago
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