Context: Killdeer preliminary sketch for Oberholser, Harry C., The Bird Life of Texas, Vol. 1, p. 317.. Killdeer preliminary sketch for Cooke, Wells W., Distribution and Migration of North American Shorebirds, plate 4.. Killdeer preliminary sketch for McAtee, W. L., Some Common Game, Aquatic and Rapacious Birds in Relation to Man, p. 15.. Plover preliminary sketch for Sanford, L. C., Bishop, L. B., and Van Dyke, T. S., The Water-Fowl Family, p. 452.. Sketch in the lower right corner is for a final work in the collection of the Academy of Natural Sciences, Philadelphia. |