Oddly enough my Man and Beast page covering the Wolf and Fox - and recently updated to add links to 4 Linepiece Fusion and Missing Ox - also covers the Falcon and some cubic-cell offshoots of it that I devised. As yet I have not used these pieces in a variant. One possibility might be a Flipped-return Nichtschach subvariant called Vogelnichtschach - like Springernichtschach but substituting Falcon for Knight, Vulture for Sexton, Merlin for Churchwarden, Kite for Ninja, Kestrel for Samurai, and Osprey for Oberon.
Regarding owls the next page of Man and Beast, page 14, has those, hough more from the bird aspect than the predatory one. The Barnowl has a SOLL of 39 and the Snowyowl and Tawnyowl 40 - in conjunction with the Flamingo and Stork having 37 and the Crane 40.
Regarding owls the next page of Man and Beast, page 14, has those, hough more from the bird aspect than the predatory one. The Barnowl has a SOLL of 39 and the Snowyowl and Tawnyowl 40 - in conjunction with the Flamingo and Stork having 37 and the Crane 40.