Bald Eagle Winter Roosting Data

This data set contains data recorded by B. Mandernack and others (hereafter referred to as ‘observers’) at EVNP, totaling 496 days (and 873 hours) of observation across 16 winter seasons (1990-2004, and 2012–2014) at Eagle Valley Nature Preserve. Eagle Valley Nature Preserve (EVNP) is owned and managed by the Kohler Co. and the Kohler Trust for Preservation. The 587 ha property is located adjacent to the Mississippi River in Grant County of southwest Wisconsin and within a broader area defined as the Driftless Region see https://wgnhs.wisc.edu/pubshare/ES057.pdf .

本数据集收录了由B·曼德纳克（B. Mandernack）等人（下文简称"观测者"）在鹰谷自然保护区（Eagle Valley Nature Preserve，EVNP）开展野外观测所得到的原始记录，累计开展496个观测日的工作，总时长达873小时，覆盖1990至2004年、2012至2014年共计16个冬季的观测任务。鹰谷自然保护区（EVNP）由科勒公司（Kohler Co.）与科勒保护信托基金（Kohler Trust for Preservation）所有并负责运营管理。该保护区占地面积587公顷，坐落于威斯康星州西南部格兰特县，毗邻密西西比河，所处区域隶属于更广范畴的无冰川覆盖区（Driftless Region），详细信息可访问以下链接：https://wgnhs.wisc.edu/pubshare/ES057.pdf。