584. (American Ornithologists' Union check-list #) Swamp Sparrow: Melospiza georgiana (Lath.) Adult--Upper parts deep chestnut or warm brown with dark streaks; lower parts ashy gray; throat white or whitish gray. Length--5.89. Breeding Range--The northern United States, northward. The nest is placed in a tussock of grass, usually in a swamp, marshy thicket, or damp meadow, rarely in a low bush; it is made of grasses, lined with fine grass and sometimes horse-hair. 4 or 5 eggs are laid; they resemble the eggs of the song sparrow, but are more broadly and less distinctly blotched; they vary greatly in their markings, which are chocolate or reddish brown, the ground colour being white slightly tinged with green, yellow, or pinkish brown. Size--.80 x .60. See Fig. 15, Plate C. The Swamp Sparrow is very frequently confused with its near relation, the song sparrow; the duller and more uniform colour of the back, the absence of dark streaks on the under parts, and the patch on the breast should serve to distinguish it. The fact that it flies without jerking its tail is also worth remembering. By any one who has sufficient perseverance the nest may be found from about the middle of May; it is carefully hidden in the rank swamp growth. Two sets of eggs are laid.