A most unusual Barn Owl crossed my path recently.
It was here (East Yorks) on 23rd Dec.
At the time I just thought it was an extreme alba but having had a look for some similar images on t'internet it would seem that guttata can be fairly pale. And then there are intergrades. There's some images on Surfbirds <here> of a bird at East Ruston, Norfolk in Jan 2004 that look strikingly similar.
It was by far the darkest/greyest Barny I've ever seen but was nowhere near how guttata are shown in guides with a complete dark underside. The bird was also in the company of another Barny and the contrast was considerable.
How dark do alba get? Do integrades regularly occur in UK?
Any thoughts appreciated - cos I'm stumped!