Swifts, where do they come from, what do they eat, where do they sleep, where do they build their nest, how do they raise their young…? Why do they need us for this, how can we help them…? We explore the nesting sites in the city with special attention to some sites of KU Leuven. In good weather, a flight show is guaranteed. Note: this walk does NOT take place in (heavy) rain or heavily overcast weather (closed sky). In case of possible cancellation, please register in advance via the online calendar, but this is not necessary Suitable for wheelchairs