The Netherlands
I haven't looked for mammals in Holland, but I've included community reports from those that have.
Mammal watching in Holland
Short trip report to Holland during summer 2023 in a nice photo hide.
New Trip Report: Mustelid Watching in the Netherlands
This seems like an interesting spot, particularly if you want to see a European Polecat which is a beast both beautiful and difficult to see. Mustelids near Amsterdam: Ingrid den B
New Trip Reports – Arizona and the Netherlands
SE Arizona, 2011: Alan Dahl, a week & 16 species including Mexican Fox Squirrel and Antelope Jackrabbit. Double Dutch, 2011: Mark Hows, 3 days & 16 mammals including Bi-Col