Red-crowned cranes are snow white in color with black on the wing secondaries, which can appear almost like a black tail when the birds are standing, but the real tail feathers are actually white. Males are black on the cheeks, throat, and neck, while females are pearly gray in these spots. Cranes are very large birds, often considered the world's tallest flying birds. Outside of the breeding season, Red-crowned cranes spend time in family ...
groups, pairs, or singly; they even roost in large groups with unrelated cranes. However, by the early spring, pairs begin to spend more time together. Even while not nesting, Red-crowned cranes tend to be aggressive towards conspecifics. They maintain a minimum distance of 2 to 3 m (6.6 to 9.8 ft) to keep out of the pecking range of other cranes while roosting at night during winter and if a crane violates these boundaries, it may be violently attacked.
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