Amazon has the European expansion for the Wingspan boardgame for $17.84. This is the lowest I’ve seen for this expansion yet.
https://www.amazon.com/dp/B07YQ6FS8G
Oceania Expansion also on sale for $23.36: https://www.amazon.com/Stonemaier…B0
Edit: looks like a price match from Target:
European Expansion: https://www.target.com/p/wingspan…A-84114736
Oceania Expansion: https://www.target.com/p/stonemai…A-84114760