Gangar swans choose their living places with plenty of food and lots of water, and because they spend most of their time in the water, Toson Lake, created by man and full of biological complexity, has become a favorable place for swans to roost.
Gangar swans arrive in Toson Lake after April 10th, lay 5-7 eggs in the beginning of May. Until the eggs are cracked, a pair of swans take turns laying their eggs until they crack. When the female swan is laying the egg, the male swan prepares the food. Then, swimming in the lake, the male swan directs, and the baby swan follows the mother swan.
