Table 2 Movement parameters by species and astronomical state. Means are given ± SD

Landing rate (landings/h)

2.1 ± 1.4

3.2 ± 2.3

2.0 ± 1.6

1.7 ± 1.5

2.6 ± 1.2

2.8 ± 1.6

3.6 ± 1.8

1.0 ± 0.9

Drift duration (min.)

20.8 ± 11.1

18.8 ± 13.6

20.4 ± 13.4

14.1 ± 10.5

14.3 ± 5.1

9.8 ± 2.6

16.6 ± 8.8

7.7 ± 2.4

Flight speed (km/h)

44.4 ± 3.6

45.6 ± 4.0

42.7 ± 3.8

45.5 ± 3.6

44.4 ± 2.9

46.9 ± 4.0

40.3 ± 3.1

46.1 ± 3.4

Flight turning angle (°)

50.1 ± 7.3

47.0 ± 7.6

53.5 ± 8.4

48.4 ± 8.0

51.0 ± 10.2

48.8 ± 9.3

54.9 ± 13.3

49.3 ± 10.2

Time in flight (%)

67.7 ± 17.0

67.6 ± 19.5

65.2 ± 27.5

83.1 ± 12.2

70.2 ± 14.8

81.9 ± 0.1

55.8 ± 24.0

94.5 ± 5.8