Rarvyn
Newcomer
If you assign Robin a bigger building to build on the day before her birthday - such as a fish pond or a new (not upgraded) barn, she spends all day working on it. Which is fine, except she's too far to interact with - and that means you can't give her a birthday gift that year.
I'd suggest she either not work on her birthday (that is, treat it like a festival and tell you she'll do it the next day) or you can give gifts from a distance if she's working on her farm.
I'd suggest she either not work on her birthday (that is, treat it like a festival and tell you she'll do it the next day) or you can give gifts from a distance if she's working on her farm.