Tern, Common
Sterna hirundo
Ringed: 33445 | Retrapped: 989 | Recovered: 217
AFRING
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
| 1453 | Mr H Defourny | 13504 |
| 572 | Mr M Boorman | 9542 |
| 280 | Mr A Tree | 5958 |
| 269 | MR G Scholtz | 726 |
| 576 | Dr S Dantu | 545 |
| 965 | Helsinki Museum Scheme, Finland | 515 |
| 316 | Mr JC Sinclair | 412 |
| 573 | Mr D Heinrich | 326 |
| 215 | Mr G Underhill | 307 |
| 1240 | Ursula Bryson | 272 |
Top 10 retrappers
| 1453 | Mr H Defourny | 940 |
| 572 | Mr M Boorman | 562 |
| 0 | Member of the public | 512 |
| 280 | Mr A Tree | 182 |
| 986 | Arnhem Scheme, Netherlands | 112 |
| 989 | Hiddensee Scheme, Germany | 79 |
| 973 | Gdansk/Varsovia Scheme, Poland | 70 |
| 988 | Bruxelles Scheme, Belgium | 65 |
| 961 | British Trust for Ornithology (BTO) | 35 |
| 269 | MR G Scholtz | 32 |
10 Latest ringing records
| SAFRING | 4H98472 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98471 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98470 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98469 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98468 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98467 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98466 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98465 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98464 | 2025-04-02 | 1552N1631W |
| SAFRING | 4H98463 | 2025-04-02 | 1552N1631W |
10 Latest retraps/recoveries
| SAFRING | 4H88384 | 2024-04-05 | 2026-01-25 | X | 1y 9m 0d |
| SAFRING | 4H91875 | 2024-04-09 | 2025-10-04 | X | 1y 5m 3d |
| SAFRING | 4H16740 | 2000-09-02 | 2025-09-15 | X | 25y 0m 24d |
| SAFRING | 4H92769 | 2024-04-04 | 2025-07-04 | 2 | 1y 3m 6d |
| SAFRING | 4H84409 | 2023-03-28 | 2025-07-01 | 4 | 2y 3m 16d |
| SAFRING | 4H92355 | 2024-04-03 | 2025-07-01 | 4 | 1y 2m 4d |
| SAFRING | 4H98373 | 2025-04-02 | 2025-06-13 | 4 | 0y 2m 12d |
| SAFRING | 4H83700 | 2022-04-04 | 2025-05-17 | X | 3y 1m 29d |
| FOREIGN_PLG | HN 72021 | 2024-06-29 | 2025-04-11 | 4 | 0y 9m 16d |
| FOREIGN_PLG | HN68337 | 2021-07-28 | 2025-04-07 | 4 | 3y 8m 29d |
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.
| FOREIGN_SFH | AT055395 | 1980-07-13 | 2014-03-09 | 4 | 33y 7m 22d |
| FOREIGN_DEH | NA098473 | 1985-06-28 | 2013-05-29 | 2 | 27y 11m 27d |
| FOREIGN_NLA | K892462 | 1991-06-22 | 2017-07-25 | 4 | 26y 1m 20d |
| FOREIGN_SFH | AT062190 | 1990-06-27 | 2016-04-15 | 2 | 25y 9m 4d |
| FOREIGN_ETM | H96811 | 1981-06-07 | 2006-09-16 | 2 | 25y 3m 22d |
| FOREIGN_NLA | K892462 | 1991-06-22 | 2015-12-19 | 4 | 24y 5m 6d |
| FOREIGN_SVS | 4230833 | 1985-07-23 | 2010-01-10 | 2 | 24y 5m 27d |
| FOREIGN_NLA | K892462 | 1991-06-22 | 2015-07-24 | 4 | 24y 1m 8d |
| FOREIGN_NLA | K892462 | 1991-06-22 | 2015-07-10 | 2 | 24y 0m 24d |
| FOREIGN_NLA | K892462 | 1991-06-22 | 2015-06-05 | 4 | 23y 11m 19d |
Long distance records
| Scheme | Ring # | Duration | Distance (Km) |
|---|---|---|---|
| FOREIGN_NLA | Z051096 | 3y 11m 23d | 11883 |
| FOREIGN | A396200 | 17y 2m 23d | 11177 |
| SAFRING | BB67085 | 6y 5m 25d | 11110 |
| FOREIGN | AT106087 | 6y 3m 12d | 11083 |
| SAFRING | 247350 | 1y 6m 26d | 11071 |
| SAFRING | 4H52368 | 7y 2m 3d | 11018 |
| FOREIGN | AT008486 | 2y 3m 10d | 11016 |
| FOREIGN | A356567 | 4y 6m 3d | 11010 |
| SAFRING | 256102 | 3y 9m 17d | 10995 |
| FOREIGN | AT037936 | 9y 5m 15d | 10963 |