Tern, Black
Chlidonias niger
Ringed: 10791 | Retrapped: 60 | Recovered: 4
SAFRING
Annual ringing activity
Biometrics
Distribution of ringing records
 |
Ringing records |  |
Retraps and resightings |  |
Ring recovery records |
| ABAP distribution Full protocol Reporting Rate | 0% | 100% | |||
| ABAP distribution records other | Adhoc protocol and pentads with less than 4 cards | ||||
Top 10 ringers
| 572 | Mr M Boorman | 5383 |
| 1453 | Mr H Defourny | 4315 |
| 280 | Mr A Tree | 370 |
| 576 | Dr S Dantu | 216 |
| 573 | Mr D Heinrich | 189 |
| 1240 | Ursula Bryson | 115 |
| 1530 | Mr H Kolb | 51 |
| 184 | Mr A Nel | 27 |
| 1565 | Mr MP Kirk | 26 |
| 574 | Mr T Osborne | 26 |
Top 10 retrappers
| 572 | Mr M Boorman | 34 |
| 1453 | Mr H Defourny | 10 |
| 0 | Member of the public | 4 |
| 986 | Arnhem Scheme, Netherlands | 3 |
| 1454 | Dr M Remisiewicz | 2 |
| 973 | Gdansk/Varsovia Scheme, Poland | 2 |
| 280 | Mr A Tree | 2 |
| 989 | Hiddensee Scheme, Germany | 1 |
| 1272 | ADU non ringer | 1 |
| 987 | Stockholm Museum Scheme, Sweden | 1 |
10 Latest ringing records
| SAFRING | BJ54224 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54223 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54222 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54221 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54220 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54219 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54218 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54217 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54216 | 2025-04-02 | 1552N1631W |
| SAFRING | BJ54215 | 2025-04-02 | 1552N1631W |
10 Latest retraps/recoveries
| SAFRING | BJ46066 | 2024-04-02 | 2026-05-24 | 2 | 2y 1m 2d |
| SAFRING | BJ46051 | 2024-04-01 | 2025-03-23 | 2 | 0y 11m 26d |
| SAFRING | BJ30654 | 2022-04-05 | 2024-04-01 | 2 | 1y 11m 7d |
| SAFRING | BJ31075 | 2021-04-10 | 2023-04-08 | 2 | 1y 11m 8d |
| SAFRING | FC18285 | 2022-12-16 | 2022-12-19 | 2 | 0y 0m 3d |
| SAFRING | FC18289 | 2022-12-17 | 2022-12-19 | 2 | 0y 0m 2d |
| SAFRING | BH83368 | 2010-12-02 | 2021-03-04 | 2 | 10y 3m 25d |
| SAFRING | BH66510 | 2012-11-02 | 2021-02-08 | 2 | 8y 3m 20d |
| SAFRING | BH83111 | 2010-11-02 | 2020-08-14 | 2 | 9y 9m 3d |
| SAFRING | BH66359 | 2012-03-25 | 2020-06-12 | 2 | 8y 2m 1d |
10 Greatest longevity retraps
Note: recovery (X) records are not included in this list as we are not always sure of the actual date of death.
| SAFRING | BC44277 | 1999-02-11 | 2010-02-17 | 2 | 11y 0m 4d |
| SAFRING | BC44529 | 1999-02-21 | 2009-11-21 | 2 | 10y 9m 26d |
| SAFRING | BH83368 | 2010-12-02 | 2021-03-04 | 2 | 10y 3m 25d |
| SAFRING | BC99652 | 2001-11-12 | 2011-12-15 | 2 | 10y 1m 25d |
| SAFRING | BH08986 | 2003-12-23 | 2014-01-02 | 2 | 10y 0m 3d |
| SAFRING | BH73144 | 2010-04-04 | 2020-02-11 | 2 | 9y 10m 0d |
| SAFRING | BH83111 | 2010-11-02 | 2020-08-14 | 2 | 9y 9m 3d |
| SAFRING | BH66510 | 2012-11-02 | 2021-02-08 | 2 | 8y 3m 20d |
| SAFRING | BH66359 | 2012-03-25 | 2020-06-12 | 2 | 8y 2m 1d |
| SAFRING | BH18207 | 2005-10-27 | 2011-12-17 | 2 | 6y 1m 22d |
Long distance records
| Scheme | Ring # | Duration | Distance (Km) |
|---|---|---|---|
| SAFRING | BH66359 | 8y 2m 1d | 8683 |
| SAFRING | BH83111 | 9y 9m 3d | 8565 |
| SAFRING | BH84531 | 4y 5m 18d | 8387 |
| SAFRING | BH49310 | 4y 5m 7d | 8335 |
| SAFRING | BH63245 | 3y 6m 3d | 8324 |
| SAFRING | BH78757 | 4y 3m 11d | 8238 |
| SAFRING | BC99658 | 4y 5m 10d | 8235 |
| SAFRING | BC84619 | 2y 5m 7d | 7148 |
| SAFRING | BH49421 | 0y 8m 17d | 6921 |
| SAFRING | BC76673 | 10y 6m 14d | 6547 |