In 2011, a number of rook pairs nestled in the Belgian capital, meaning the bird species have come back to our region after an absence of 50 years. Enough reasons for filmmaker Bernard Crutzen to examine the Brussels animal kingdom for a second time, after his first documentary (Brussels Wild), this time focussing on animals in the sky. He looks for wild birds in Brussels and examines their relationship with the inhabitants of the city. Apart from a small crow population in Ganshoren, he discovers herons, sparrows, swifts, falcons, parakeets and even storks.