. The warblers of New England . thern states, but are general-ly distributed in the three northern. Thus they are known tonest quite regularly in the towns about Boston, as in Brook-line, Dedham, Milton, Bedford, Belmont, and Concord. Alsoin Worcester and Berkshire Counties. In my Birds of East-ern North America, second editon, page 621, I have suggestedthat such a singular distribution may be explained by suppos-ing that this species, in common with such birds as the HermitThrush and Solitary Vireo, which are similarly scattered inin summer, were more universely distributed in the past whenth
. The warblers of New England . thern states, but are general-ly distributed in the three northern. Thus they are known tonest quite regularly in the towns about Boston, as in Brook-line, Dedham, Milton, Bedford, Belmont, and Concord. Alsoin Worcester and Berkshire Counties. In my Birds of East-ern North America, second editon, page 621, I have suggestedthat such a singular distribution may be explained by suppos-ing that this species, in common with such birds as the HermitThrush and Solitary Vireo, which are similarly scattered inin summer, were more universely distributed in the past whenthe forests were more continuous; then nesting over much ofthe intermediate region which they now avoid on account of 122 HOODED WARBLER. the changed environment. These warblers migrate in autumnabout the second week in September; I found them at Wat-sontown, Pennsylvania, in 1875, from about the first to themiddle of this month. Winters from eastern Mexico and Cen-tral America to Ecuador and ; tail spots present. Fig. Heail and outer tail featker of Hoodecl Warbler. HOODED WAKBLEK. Wilsonia initrata. Plate XII, Fig. 3, male ; Fig. 4, female. Size, to Black hood partly covering head, leav-ing a yellow mask on face. Greenish above; yellow in southern Connecticut in summer; accidental inMassachusetts. Male. Above, uniform greenish olive ; forehead, sides of head, form-ing a mask, and beneath, yellow. Back of head, joining a patch beneath,forming a hood, black. Female. Similar in general coloration, to the male, but with lessblack on the hood. Young Male. Similar to the adult female, but the black more orless overwashed with greenish. Young Female. Quite similar to the young male, but the black is in-distinct, sometimes wanting. AMERICAN WARBLERS. 123 Nestlings. Pale grayish brown above and on chin, throat and up-per breast, elsewhere beneath, pale yellow. There are two pale cinnamonwing bands. Dimensions. Length, ; stretch, ; wing,
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