Saw what my bird guide tells me was a Saker Falcon, near Sonoco at Stainland, assuming it must be an escapee?
Update.. Might've just been a young buzzard.
This is the blog for bird sightings and related news in the Calderdale area. It is generally updated daily. Any non-member wishing to report and post sightings should send them to info(at)calderdalebirds(dot)co(dot)uk