When you think of such a common bird of prey, you naturally think “it’s all over the place, you see it everywhere”, but when Eddy goes out into the forest with Hanneke Sevink from the bird of prey working group, it turns out to be more difficult than expected. “It’s breeding season,” Hanneke explains, “and then especially the females on the nests really keep quiet.” Brooding on the eggs is a serious matter, but only works if the female has reached weight: “on average, the females now sit on a nest with 4, with the exception of 5, eggs. If there has been too little food in the winter, then That number decreases rapidly. Sometimes there are no eggs at all.”