"Bruxelles Sauvage: Faune Capitale" is a documentary by Bernard Crutzen, who got the idea after a close encounter with a fox (the fox opens the film, curiously nuzzling the film maker's lens).
We have foxes in our apartment building's back yard, which is a lovely little patch of woods in the city. There was a day a few weeks ago when all of a sudden, it was foxes running all over the place - obviously mating day. Since then, not often enough, we've seen a fox sunning him or herself just under our window.
"Bruxelles Sauvage" does have a soft spot for these urban omnivores, though the film does point out that feeding them is a bad idea. Not only might you lose a finger, but it also encourages over breeding.
Apparently the first (modern day) foxes came to Brussels when trains paved the way into the city in the 19th century. The film also highlights other creatures, from frogs and toads in park fountains to high flying hawks in church steeples.
And that's part of the pleasure of living in Brussels. With one of Europe's largest urban forests within the city limits - the Forêt de Soignes - we have endless hiking trails, some within easy reach of a tram or metro stop. Some of the animals shown in the film, rehabilitated after an injury from a vehicle accident, etc., wind up being released back into the forest.
But you can't beat looking out the window and seeing a fox right at home.