The nests are piles of sticks around 70 cm (28 in) in diameter and 15–43 cm (5.9–16.9 in) high with a cup-shaped depression in the middle that is 20 cm (8 in) across and 10 cm (4 in) deep. Their nests are built in pines, oaks, Douglas firs, beeches, spruces, and other tree species usually on flat ground rather than on a hillside. The nests typically are about 7.6–15.1 m (25–50 ft) high off the ground, halfway up the tree, and out on a horizontal branch.[1] The clutch size is usually 3 to 5 eggs.