On April 7, Shenyang's Wolong Lake Nature Reserve in Liaoning Province welcomed tens of thousands of migratory birds, creating a spectacular scene known as the "Bird Wave," which darkens the sky. The "bird wave" undulates in the sky, forming intricate patterns and changing formations.

It is understood that since late February, migratory birds have been returning to Wolong Lake, including rare species such as cranes, egrets, oriental storks, and bald eagles. The annual bird observation count at Wolong Lake exceeds four million.

The video was provided with permission from local media.

近日，辽宁沈阳卧龙湖自然保护区迎来数万只各类候鸟，出现遮天蔽日鸟浪奇观。天空中的“鸟浪”上下起伏，错落有致，还能变换不同队形。
随着生态建设力度不断加大，爱鸟护鸟已形成普遍的社会氛围，越来越多的候鸟迁徙而至，成为候鸟迁徙停歇的“五星级客栈”。如今的卧龙湖，有烟波浩渺的水体美景、千姿百态的生物资源、种类繁多的植物群落，形成了别具一格的湿地景观。
据了解，从2月下旬起，就陆续有候鸟飞回卧龙湖，包括珍稀的白鹤，白琵鹭、东方白鹳，白头鹰等，每年卧龙湖候鸟观测量达400多万只。