Unlike most large birds, the Common Crane builds no tree nest — the nest lies directly on the ground in inaccessible wetland, well protected by wet ground that keeps land predators away.
Location: out in open mires, bogs and fens, preferably with open water all around as a natural moat against fox and badger.
Construction: a large, flattened heap of sedge, reeds and other wetland vegetation that the pair gathers on the spot.
Fidelity: the same breeding mire is often used year after year, and the 2 eggs are incubated by both parents for a good four weeks.