Birds and wings
A bit off topic but relevant to the bird strike theory, we often fly in the flat area south of Grimsby. Surprisingly few issues, over years, with seagulls, but over the last month I have had a few close encounters with buzzards at levels 800-2,000 ft.
Though I've noticed on the ground that we are getting more buzzards around here (as I think most places in UK?) it is only now that I find they are a factor here whilst we are airborne.