Bird Island 1971 three-period comparisons

This file contains provisioning data from Bird Island in 1971 used in in ESM 3 to demonstrate similarity in provisioning rate between three different time periods.本数据集包含1971年伯德岛（Bird Island）的育雏喂食数据，该数据被应用于ESM 3中，用于展示三个不同时间段内育雏喂食率的相似性。