In Rotterdam-Crooswijk several housing blocks were demolished so they could be replaced by fancier housing. The municipality of Rotterdam claimed that the buildings were in a poor state. The real reason was probably that the area, inhabited by lower-income households, was near the Kralingse forest. The new houses can only be afforded by people with high incomes. It’s clear that not just Amsterdam, but also Rotterdam, is undergoing a process of gentrification. But why should we limit ourselves to human housing? Maybe if we ‘upgrade’ trees, we will attract a ‘higher class’ of birds. If the municipality improves the Kralingse forest this way, they can increase the real estate prizes even more!