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Table 2 Numbers of breeding birds caught in 2016 and 2017 as well as numbers of recaptured individuals and recapture rate of birds ringed in 2016

From: Nest site tenacity and mate fidelity in the Black-headed Gull (Chroicocephalus ridibundus)

Study area

Captured individuals 2016

Captured individuals 2017

Recaptured individuals (m/f)

Recapture rate (%)

Riether Werder A

72

99

14 (8/6)

19.4

Riether Werder B

82

131

22 (9/13)

26.8

Riether Werder A + B

154

230

36 (17/19)

23.4

Böhmke Island A

82

100

47 (22/25)

57.3

Böhmke Island B

45

30

13 (8/5)

28.9

Böhmke Island A + B

127

130

60 (30/30)

47.2

Total

281

360

96 (47/49)

34.2