Metal pollution gradient exploration scores

This file contains novel environment exploration scores for great tits residing at study sites located across a metal pollution gradient in Antwerp, Belgium, in 2017. The study sites were: Fort 4 (F4), Fort 5 (F5), Fort 6 (F6/CDE), Fort 7 (F7), Fort 8 (F8) and Umicore (UM). UM is closest to the pollution source and F4 farthest away. UM and F8 were grouped into one site for final analysis. Band number, colors and PIT tag are three different individual identity markers. Basic body measurements are also given, including body mass on the night of capture (weight in) and body mass measured after the personality test on the following morning (weight out).