伊利诺伊州北部猎鸭季10月24日开猎：航测显示鸭群数量偏低，针尾鸭成亮点
伊利诺伊州北部猎鸭季已于10月24日拉开帷幕，但早期的空中调查显示，伊利诺伊河与密西西比河沿线的鸭群数量明显低于往年平均水平，猎季开局偏慢。根据伊利诺伊州自然历史调查所的水禽航测报告，绿头鸭和其他鸭类的抵达速度较慢，北方针尾鸭是为数不多的亮点。
北部猎区的猎季从10月24日开始，中部猎区将于10月31日开猎，南部猎区则要等到11月14日。调查人员指出，鸭群迁徙的节奏直接影响猎季初期的收获，猎人在北部猎区开猎首日感受到的正是这种偏慢的开局。
伊利诺伊河是中部迁徙路线上的重要停歇地，每年秋季都有大量水禽沿河向南迁徙，航测数据是管理部门判断种群状况的重要依据。随着气温进一步下降，更多鸭群预计将陆续抵达，中部和南部猎区的猎人仍在等待属于自己的开猎日。
来源：GSM·美国
Illinois North Zone Duck Season Opens October 24 with Low Aerial Counts; Northern Pintails a Bright Spot
Illinois's north zone duck season opened on October 24, but early aerial surveys show waterfowl numbers along the Illinois and Mississippi rivers running well below historical averages, making for a slow start. According to the Illinois Natural History Survey's waterfowl aerial census, mallards and other ducks have been slow to arrive, with northern pintails one of the few bright spots.
The north zone season began October 24; the central zone opens October 31 and the south zone on November 14. Survey staff note that migration timing directly shapes early-season success, which is what north zone hunters experienced on opening day.
The Illinois River is a key stopover on the central flyway, hosting large numbers of migrating waterfowl each fall, and the aerial census is a central tool for managers assessing population status. More ducks are expected to arrive as temperatures fall, while central and south zone hunters await their own openers.
Source: GSM·USA
来源：GSM·美国（原文链接）
图片来源：湿地水禽（资料图）。图片：Public domain，取自维基共享资源。
