southerly migration departure date, mean (and range) |
20 Sep (07 Sep–23 Sep) |
21 Sep (13 Sep–23 Sep) |
p=1.000 |
southerly migration duration, mean (and range) |
25.8 days (14–44 days) |
35.0 days (26–42 days) |
p=0.092 |
time at over-wintering core (80%), mean (and range) |
139.7 days (125–150 days) |
149.3 days (138–156 days) |
p=0.058 |
northerly migration departure date, mean (and range) |
3 Mar (08 Feb–30 Mar) |
23 Mar (01 Mar–07 Apr) |
p=0.065 |
northerly migration duration, mean (and range) |
40.2 days (30–58 days) |
27.6 days (22–35 days) |
p=0.019 |
arrival near colony, mean (and range) |
13 Apr (06 Apr–29 Apr) |
20 Apr (23 Mar–06 May) |
p=0.229 |
stopover days southwards, mean (and range) |
8.1 days (0–30.5 days) |
13.9 days (0–23 days) |
p=0.309 |
stopover days northwards, mean (and range) |
13.3 days (0–23 days) |
7.4 days (0–18.5 days) |
p=0.143 |
number of stopovers per bird, mean (and range) |
3.2 (1–6) |
3.3 (2–5) |
p=0.871 |
duration of individual stopovers, mean (and range) |
6.7 days (2.5–13.5 days) |
6.4 days (2.5–15.5 days) |
p=0.516 |
total number of stopover days, mean (and range) |
21.3 days (4.5–41.5 days) |
21.3 days (14.5–32 days) |
p=0.872 |