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

From: Shadowed by scale: subtle behavioral niche partitioning in two sympatric, tropical breeding albatross species

  Black-footed albatross Laysan albatross
Parameter Overall trip Day Night Twilight Overall trip Day Night Twilight
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