Some sort of beard lichen probably in Usnea
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https://midwest.social/pictrs/image/7dc1b5ef-0575-41de-b7e9-cbca0ee062f8.jpeg

https://midwest.social/pictrs/image/7dc1b5ef-0575-41de-b7e9-cbca0ee062f8.jpeg

Yes, Usnea sp. could compare to U. perplexans but there are others that could fit too.
I think I've seen this specific type before in Finland.