At a documentairy festival in amsterdam, the netherlands they showed a film about the grey heron population in this city.
The needed 10 years to make the film.
It is very interesting to see how the bird is so different from his brothers and sisters in the country side.
It is a site in dutch, but the trailers speak for them selfs. When there is more info in english i will tell.
Enjoy our balcony bird in the city :!: