Migrating Bird Survey Data along the San Pedro River and its Tributaries, Southeastern Arizona, 1989-1994

Data files in this data series represent migrating bird count and habitat information collected during 1989, 1991, 1993, and 1994 field seasons at 13 riparian sites...本数据集系列中的数据文件，记录了1989年、1991年、1993年及1994年野外调查季，在13个滨水河岸点位采集的迁徙鸟类种群数量与生境信息……