Table 2 Total number of breeding pairs per year and number and rate of returned logger and non-logger birds for each year
Year (x) | Logger-birds | Non-logger birds | |||||||
|---|---|---|---|---|---|---|---|---|---|
Total N oof breeding pairs | No. of all birds tracked in year x | No. of all tracked birds returned in year (x + 1) | No. of birds tracked for the first time in year x | No. of first tracked birds returned in year (x + 1) | Return rate | No. of birds sampled for comparison in year x | No. of same birds returned in year (x + 1) | Return rate | |
2012 | 44 | 10 | 8 | 10 | 8 | 0.8 | 10 | 3 | 0.3 |
2013 | 42 | 10 | 7 | 6 | 5 | 0.7 | 10 | 6 | 0.6 |
2014 | 48 | 10 | 6 | 6 | 4 | 0.6 | 10 | 4 | 0.4 |
2015 | 47 | 10 | 5 | 8 | 4 | 0.5 | 10 | 9 | 0.9 |
2016 | 53 | 10 | 7 | 5 | 5 | 0.7 | 10 | 7 | 0.7 |
2017 | 58 | 11 | 6 | 9 | 4 | 0.55 | 11 | 9 | 0.82 |
2018 | 59 | 19 | 8 | 19 | 8 | 0.42 | 19 | 17 | 0.89 |
2019 | 60 | 5 | 3 | 3 | 1 | 0.6 | 5 | 1 | 0.2 |
Sum | 85 | 50 | 66 | 39 | 0.61 | 85 | 56 | 0.6 | |