Found near the river Findhorn in Moray Scotland. Many thanks!
Don't know how much variation there is in practice, but one of my books (Die Federn der Vögel Mitteleuropas) has a very similar, c. 30cm feather as H10 of an Osprey.
All the best -
Just took a look at Feathers (Marian Cieslak and Bolestaw Dul) (thus exhausting my collection) for comparison. P9 and P10 of an Osprey aren't bared, although the other primaries are.
But in that book there's a lot less white on both than in your picture.
Interesting that the books vary between them, which suggests to me a fair amount of variation across birds. But I'm definitely an amateur at this.
Thanks for posting. Thanks to you I've just found, slipped inside the cover of Feathers, a Great Spotted Woodpecker feather I found a few years ago. Nice way to start the day.
:-) I'm, daunker, the last person to correct you (or anyone). But I think gull feathers are blunt tipped. (Where are the experts when you need them?)
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