Eurasian Treecreeper or a Short-toed Treecreeper? Yet regardless a Tiny Cute Bird, never seen by Sveta or I before…
This is a great little guy and I hope to see many more of these…
https://ebird.org/species/eurtre1
or
https://ebird.org/species/shttre1
Just like a mouse on a tree!
WtR