. The birds of Illinois and Wisconsin . ng been taken in thestate. Genus TRINGA Linn. 112. Tringa canutus Distr.: A cosmopolitan species, breeding in high latitudes, mi-grating south to the southern hemisphere in winter. Adult in summer: Top of the head, buffy white, mixed withblackish; upper plumage, variegated with black, white, and buff;upper tail coverts, barred with black and white, often marked withbuff; entire under parts, except the lower abdomen, rufous brown;lower abdomen, white; axillars, white, with long, arrow-shaped mark-ings of dark gray. Adult in winter: Entire upper
. The birds of Illinois and Wisconsin . ng been taken in thestate. Genus TRINGA Linn. 112. Tringa canutus Distr.: A cosmopolitan species, breeding in high latitudes, mi-grating south to the southern hemisphere in winter. Adult in summer: Top of the head, buffy white, mixed withblackish; upper plumage, variegated with black, white, and buff;upper tail coverts, barred with black and white, often marked withbuff; entire under parts, except the lower abdomen, rufous brown;lower abdomen, white; axillars, white, with long, arrow-shaped mark-ings of dark gray. Adult in winter: Entire upper plumage, ashy gray, the feathershaving pale, brownish shafts, showing indistinct fine lines; upper tailcoverts, white, banded with brown; under parts, white; the breastand sides with indistinct, irregular dots and bands of brownish gray;belly, and under tail coverts, pure white; axillars, white, with irreg-ular, arrow-shaped, brownish gray marking. 402 Field Museum of Natural History — Zoology, Vol. IX. rS^ Knot. Upper tail Length, ; wing, ; tarsus, ; bill, The Knot occurs sparingly in Illinois and Wisconsin during themigrations. Nelson gives it as a regular migrant, but not and Hollister say: Thirty years ago a rather common mi-grant in May and June and more sparing in Autumn. Of late yearsdecidedly rare at any season. (Birds of Wisconsin, 1903, p. 45.) Genus AROUATELLA Baird. 113. Arquatella maritima (Brunn.). Purple Sandpiper. Tringa maritima Brunn., A. O. U. Check List, 1895, p. 87. Distr.: Northern portions of northern hemisphere; in NorthAmerica chiefly in the northeastern portion, breeding in high latitudesand migrating south in winter to the middle Atlantic states and theGreat Lakes; accidental in Florida. Adult in summer: Top of head, dark gray; back, blackish, thefeathers edged with grayish white; rump and upper tail coverts,black or brownish black; a small black spot in front of the eye;breast, grayish, having the appear
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