| Month/Year | T | Bleaks (%) | Mean Fish No./Regurgitation Particle (±SD) | N | Weight(g)/bird/day |
| 11/2010 | 58 | 42 | 7 (5) | 25 | 250 |
| 12/2010 | 50 | 50 | 11 (6) | 93 | 300 |
| 1/2011 | 51 | 49 | 13 (8) | 94 | 350 |
| 2/2011 | 69 | 31 | 8 (5) | 65 | 400 |
| 3/2011 | 90 | 10 | 5 (3) | 30 | 399 |