The Collared Sparrowhawk builds a rather flat nest of twigs and sticks in the fork of a tree, usually high among the foliage. The nest is lined with fresh leaves. Mainly the female incubates, with the male helping at times, though he provides her with food. The female broods the young for the first week or so and then shelters them in very hot or cold weather. The young are fed with small pieces of food, bill to bill. Sparrowhawks are very calm at their nest, unlike the Brown Goshawk which is very aggressive.