I think the leaves look like a fruit tree.
Definitely not a birch. Could be a type of willow or a fruit tree. We need more photos.
I'm not 100% but I will email the pics to my head gardener and see what he thinks...he should know if anyone does!
I work there :lol: He is my boss rather than my personal slave. Forgot to send it last night but have just done so now :wave:
It looks feline. Domestic short hair. Probably harmless to rabbits but definitely not edible!