蒙特雷湾上空的双冠鸬鹚，加利福尼亚州，美国 Double-crested cormorants over Monterey Bay, California, USA (© Hiroya Minakuchi/Minden Pictures)

蒙特雷湾上空的双冠鸬鹚，加利福尼亚州，美国 Double-crested cormorants over Monterey Bay, California, USA (© Hiroya Minakuchi/Minden Pictures)

迁飞路线上的生命 Life along the flyway

世界候鸟日

世界候鸟日旨在庆祝大自然最壮观的旅程之一。这项全球性活动于每年5月和10月举行，反映世界各地的迁徙模式，并强调保护鸟类赖以生存的栖息地和迁飞路线的重要性。“每一只鸟都很重要——您的观察至关重要！”是2026年的主题，着重说明个人和社区的观察可以如何为鸟类研究、监测和保护贡献力量，帮助科学家更好地了解迁徙。

今天的图片捕捉到了双冠鸬鹚飞越加利福尼亚州蒙特雷湾海浪上空的景象。这些适应力强的海鸟广泛分布于北美洲，可能迁徙，也可能全年留在原地，具体取决于种群。沿着加利福尼亚州海岸，海湾、湿地和河口为沿太平洋迁飞路线飞行的鸟类提供了重要栖息地。对许多物种而言，这些生态系统为跨越漫长距离的旅程提供支持。每一次目击都有助于揭示这些迁徙，并提醒我们，即使只是一只鸟，也可能是一个宏大得多的故事的一部分。

World Migratory Bird Day

World Migratory Bird Day celebrates one of nature's greatest journeys. Observed each year in May and October, the global campaign reflects migration patterns around the world and highlights the importance of protecting the habitats and flyways that birds depend on. 'Every Bird Counts—Your Observations Matter!' is the 2026 theme, emphasizing how observations by individuals and communities can contribute to bird research, monitoring, and conservation, helping scientists better understand migration.

Today's image captures double-crested cormorants flying above the waves of Monterey Bay, California. Widespread across North America, these adaptable seabirds may migrate or remain year-round, depending on the population. Along California's coast, bays, wetlands, and estuaries provide important habitat for birds traveling the Pacific Flyway. For many species, these ecosystems support journeys spanning vast distances. Each sighting helps reveal these migrations and reminds us that even a single bird can be part of a much larger story.