This video is called Peregrine Falcon Tribute.
Translated from Belgian daily Het Laatste Nieuws:
In Brussels, the capital territory of Belgium, 103 bird species nest. Still, the bird population has changed considerably recently. Since the 1990s, twelve bird species have disappeared. This is shown by a ‘bird atlas’ of Brussels, published by the organisation Aves-Natagora.
“Generally, the number of bird species has really declined. One can especially see that in the suburbs, where there is a lot of urbanization”, Aves-Natagora explains. The atlas also shows that some birds are new to Brussels, or are coming back to it. They include the goshawk and the peregrine falcon.
Also, the Egyptian goose and the ring-necked parakeet.