Alan Stewart explores ornithopters emulating the natural flight of birds and insects. Features overview, photo gallery, archives and research information.

Fly with flapping wings. Features information on getting started, photo and multimedia gallery, free plans, resources, links, newsletter and discussion forum.

An engine-powered piloted aircraft, which is based on the technology of the Harris/DeLaurier model. Features history of ornithopters and the project, media gallery, links and contacts.

Discussion forum of ornithopter aircraft and their discussion, test and operation. Featured postings include online newsletter of The Ornithopter Society.