Photo of flower pot with red houseleek and some grass coming out between the remnants of the Edelweiss that died a few months ago and a fresh hole with a single acorn in it.
Photo of flower pot with red houseleek and some grass coming out between the remnants of the Edelweiss that died a few months ago and a fresh hole with a single acorn in it.
Yes, other species of Jays would also be capable of doing this.
Thinking about it more, the EU has another more probable species: Woodpeckers.
When I lived in Spain, there were half a dozen woodpeckers who would eat acorns. I have zero doubt that a woodpecker would do this.