衡水湖上演罕见候鸟同框“盛会”|国产精品午夜福利视频234区
中新网衡水11月24日电 (邢璐 崔志平 张凯)初冬时节，河北衡水湖上演了一场罕见的候鸟同框“盛会”，近百只国家二级保护动物小天鹅在湖面嬉戏，近万只豆雁列队翱翔，千余只花脸鸭形成的“鸟浪”翻飞涌动，三种候鸟景象大规模同框。
据悉，这一珍贵画面由摄影爱好者王铁良于11月23日捕捉。他回忆称，当天，他在衡水湖拍摄雁群时，发现不远处有一大群小天鹅在湖面嬉戏，而远处天际线则翻涌着由大量鸭类集群形成的“鸟浪”。
王铁良直言当时“特别兴奋”，立即用镜头记录了这一幕。河北衡水滨湖新区资源保护局副局长张余广说，这三种候鸟的习性与偏好栖息地存在较明显差异，通常活跃于不同的时段或区域，如此大规模、高密度的同框景象十分罕见。
张余广解释道，小天鹅通常在10月末陆续抵达衡水湖，偏好在浅水区活动；豆雁的迁徙大军则多在10月中下旬抵达，常集群栖息于开阔水域及周边农田地带。两者栖息区域虽有部分重叠，但如此大规模同框实属不易。而影像中的另一大奇观——“鸟浪”，经辨认是由上千只花脸鸭从芦苇荡中瞬间起飞所形成。鸟群绵延数百米，在空中盘旋起落，其飞舞之密集甚至遮蔽了部分天光，与冬日的湖光水色相映成趣。
张余广强调，“鸟浪”奇观本身是候鸟种群集中起落的典型表现，但此次小天鹅、豆雁群与大型“鸟浪”三种景观叠加呈现，印证了湿地生态环境的显著改善。
素有“京津冀最美湿地”之称的衡水湖，是华北平原保持沼泽、水域、滩涂、草甸和林地等完整湿地生态系统的国家级自然保护区，也是东亚—澳大利西亚候鸟迁徙线上的重要驿站。截至目前，这里已观测记录到鸟类336种，每年有60余种鸟类在此越冬，数量最高时逾10万只。(完)
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