
A mandarin duck is seen at the outskirts of Vladivostok, Russia, April 1, 2024. As spring comes, mandarin ducks have flown back to the Russian Far East city of Vladivostok.(Photo: Xinhua)

A mandarin duck is seen at the outskirts of Vladivostok, Russia, April 1, 2024. As spring comes, mandarin ducks have flown back to the Russian Far East city of Vladivostok.(Photo: Xinhua)

Mandarin ducks are seen at the outskirts of Vladivostok, Russia, April 1, 2024. As spring comes, mandarin ducks have flown back to the Russian Far East city of Vladivostok.(Photo: Xinhua)

A mandarin duck is seen at the outskirts of Vladivostok, Russia, April 1, 2024. As spring comes, mandarin ducks have flown back to the Russian Far East city of Vladivostok.(Photo: Xinhua)