Motacilla cinerea -- Gray Wagtail; Grey Wagtail. Alternate name on piece: Calobates sulphurea (winter plumage) [Grey wagtail] Layout drawing, birds well finished; 2 birds replaced by cut transfer tissues attached with straight pins; the published plate incorporates the tissue adjustments; 4 notes on color and form; unrelated diagram marked "Buck wheat" in lower margin. Artist's name(s): Gould, John; Richter, Henry Constantine.