Swans are the largest and most beautiful water birds in the world and live mostly in the northern hemisphere.
One of the characteristics of swans is monogamy and their rate of separation is very low, and they choose a new partner only in the case of severe death of their spouse or failure to lay eggs.

Since the distant past, this bird has been well known in the literature and art of the world, especially in Europe, and the white color of its feathers is a sign of its innocence and purity.
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