The internet is so fucked. I just looked up how/when to tap birch trees for sap, and the article I found talked about how tapping birches is where maple syrup comes from.

This AI slop is like microplastic. It's polluting everything.

@Shanmonster We don't have any native maples in my area, only decorative ones. We have lots of birch though and birch syrup does show up in our farmers market.
But it costs a mint.
40 litres sap for 1 litre of syrup from Eastern Maples.
60 litres sap to make 1 litre of syrup from a Birch.
All the birch syrup I've ever had was watery - they didn't go far enough I guess.
I just looked that up for you, but, really, I thought it was even more. Like 80L for the birch.