Range.--Northern hemisphere; breeds, in America, from New Brunswick, Iowa, Illinois, and British Columbia northward; winters from British Columbia, Illinois, and Virginia, south to Central America and West Indies.
=133. Black Duck= (_Anas obscura_). L. 22. _Ads._ Speculum bluish purple tipped with _black_; no white in wing; lining of wing white and _dusky_; crown _without_ paler margins; throat, usually, without markings; legs "olivaceous brown," bill "greenish black, dusky olive, or olive-green." _Notes._ A _quack_ resembling that of the Mallard.
Range.--Eastern North America; chiefly east of Mississippi; breeds locally from New Jersey and Illinois north to Labrador and Hudson Bay; winters from Maine to West Indies.
=133a. Red-legged Black Duck= (_A. o. rubripes_). Similar to No. 133 but larger; crown edged with buff or gray; throat spotted; legs red; bill yellow.
Range.--Summer range not definitely known, but breeding specimens have been taken in northern Labrador, James Bay, and west shore of Hudson Bay; in winter south to Virginia and Arkansas.
_134. Florida Duck_ (_Anas fulvigula_). L. 20. _Ads._ Throat and front of neck plain buff, usually unmarked; speculum sometimes tipped with white; belly rusty buff; broadly _streaked_ with black. _Notes._ A _quack_ similar to that of No. 133.
Range.--Florida to coast of Louisiana; resident.
=134a. Mottled Duck= (_A. f. maculosa_). Similar to No. 134, but underparts _mottled_ with black, the markings being _rounder_.
Range.--Eastern Texas; breeds (at least) from Corpus Christi north to Kansas; winters on west Gulf Coast.
=135. Gadwall= (_Chaulelasmus streperus_), L. 19.5. Under wing coverts and axillars _pure white_. _Ad._ [Male]. Wing-coverts chestnut; breast _ringed_ with white. _Ad._ [Female]. Head and throat as in [Male], back fuscous and buffy; breast and _sides_ ochraceous thickly spotted with blackish; speculum ashy gray and white. _Notes._ A _quack_ like that of the Mallard but shriller and more often repeated.
Range.--Northern hemisphere; in America, breeds in the interior from Kansas and California north to Manitoba and Assiniboia; winters from Maryland to Florida, rare in northeastern Atlantic States.
=136. Widgeon= (_Mareca penelope_). L. 18.5. _Ad._ [Male]. Head and neck reddish brown; crown buff; sides with wavy black and white lines. _Ad._ [Female]. Head and throat _rusty_, finely streaked and barred with black; breast and sides rusty; speculum blackish. _Notes._ Of male, a shrill, whistling _whee-you_; of female, a low, purring growl. (Saunders.)