Study of a Sparrow's Wing

This anatomical study by Francis Augustus Lathrop documents the structure of a sparrow's wing with labeled precision. The sketch identifies primary and secondary coverts, scapulars, and other feather groups essential to flight mechanics. Lathrop, an American designer and illustrator active in the late nineteenth century, combined ornithological observation with technical draftsmanship. Such detailed studies of natural forms informed both fine and applied arts of the period, reflecting the era's commitment to understanding anatomy as the foundation of representational drawing. This working sketch represents the kind of foundational research artists undertook before the widespread availability of photographic reference materials.