Table 1 To illustrate the individual variation we calculated for the Austrian and Italian study site mean, minimum and maximum values over all individuals for: the number of consecutive days being present or absent, the total number of days present and the percentage of days present (data refer to the time between marking and their last observation).

From: Fission-fusion dynamics over large distances in raven non-breeders

 

# of consecutive days present

# of consecutive days absent

# of days present1

% of all possible days present1

Austria

3.3 (1–85)

22.5 (1–503)

207.8 (11–973)

40.7% (0.03–92.9%)

Italy

1.7 (1–19)

31.8 (1–528)

87.5 (10–284)

22.6% (0.02–69.2%)

  1. 1Only individuals with at least 10 observations were included; N = 126 for AUT and N = 52 for ITA.