Flock size | Number of dives | Dive duration (s) | Number of pauses | Pause duration (s) | Diving efficiency |
---|---|---|---|---|---|
1‒5 | 2354 | 19.9 ± 5.9a | 2249 | 13.2 ± 12.5a | 2.546 ± 1.786a |
6‒10 | 675 | 19.0 ± 5.8b | 638 | 13.0 ± 9.8a | 2.127 ± 1.399b |
11‒15 | 912 | 17.0 ± 5.4c | 869 | 13.0 ± 9.2a | 1.849 ± 1.240c |
16‒19 | 364 | 15.3 ± 5.7d | 348 | 10.7 ± 9.0b | 2.130 ± 1.478b |