Caption:
Planches coloriees des oiseaux de la Belgique et de leurs oeufs Bruxelles, C. Muquardt, 1854-60 Belgium, Birds, Charles Frederick Dubois, Falco Aesalon, Falco columbarius, The illustration depicts two falcons poised on a branch, showcasing their distinctive plumage and features. The bird on the left, with mottled brown and cream feathers, displays a more delicate appearance, while the falcon on the right features a sleek, dark head and contrasting lighter body, demonstrating a striking presence. Both birds are positioned closely together, indicating a potential pairing or familial bond. Below the artwork, the species is labeled ''Faucon Émerillon, ' indicating their identity as Eurasian Hobby falcons, with a note referring to their male and female distinctions. The natural setting emphasizes their habitat, adding a touch of authenticity to the representation.