North American duck populations and the Central U.S. hunters who hunt them

This data file is in long format, comprising time series of hunter abundance and behavior and duck abundance. Hunter information varies by administrative flyway...本数据集文件采用长格式（long format）存储，包含猎捕者种群数量、猎捕行为以及鸭类种群数量的时间序列数据。猎捕相关信息随行政管辖的迁徙通道（administrative flyway）而异……