Robert Havell after John James Audubon, ‘Snowy Heron, or White Egret’, 1835, National Gallery of Art, Washington, D.C.
plate: 65.4 x 52.7 cm (25 3/4 x 20 3/4 in.)  sheet: 100 x 68 cm (39 3/8 x 26 3/4 in.)