. The birds of Illinois and Wisconsin. Birds; Birds. 372 Field Museum of Natural History — Zoology, Vol. IX. Length, i6 inches; wing, ; tail, ; tarsus, ; bill, The Green Heron is a common summer resident in IlUnois and Wis- consin and breeds throughout both states in suitable localities. Nidification commences in May. The nest is a mass of small twigs placed in a bush or low tree near water. The eggs are 4 to 6, pale blue or greenish blue, and measure x inches. An admirable article on the breeding of this species in Wisconsin is given by Mrs. Irene G. Wheelock in Th
. The birds of Illinois and Wisconsin. Birds; Birds. 372 Field Museum of Natural History — Zoology, Vol. IX. Length, i6 inches; wing, ; tail, ; tarsus, ; bill, The Green Heron is a common summer resident in IlUnois and Wis- consin and breeds throughout both states in suitable localities. Nidification commences in May. The nest is a mass of small twigs placed in a bush or low tree near water. The eggs are 4 to 6, pale blue or greenish blue, and measure x inches. An admirable article on the breeding of this species in Wisconsin is given by Mrs. Irene G. Wheelock in The Auk, Vol. XXIII, 1906, p. 432, to which those interested are referred. Genus NYCTICORAX Forster. 88. Nycticorax nycticorax naevius (Bodd.). Black-crowned Night Heron. Local name: Quawk. Distr.: Whole of America, from Ontario and Manitoba south to the West Indies and South America to the Falkland Islands. Adult: Crown, head, back, and scapulars, greenish black; fore- head, lores, most of the neck and under parts, white or ashy white; wings and tail, gray; legs and feet, yellow; two or three very long occipital plumes, white in the breeding Adult. Black-crowned Night Heron. 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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