Duck, Yellow-billed
Anas undulata
Ringed: 32526 | Retrapped: 54 | Recovered: 1445
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
| 701 | Mr S van der Merwe | 28632 |
| 801 | MG Palmer | 850 |
| 1136 | CPA Dept Nature Conserv, Andries Venter | 464 |
| 22 | Dr P le S Milstein | 430 |
| 12730 | Dr C Reynolds | 263 |
| 706 | Mr K Morgan | 231 |
| 300 | Natal Bird Club | 194 |
| 1417 | Dr M Ndlovu | 164 |
| 201 | Andries Venter CNC | 153 |
| 451 | Dr J Geldenhuys | 153 |
Top 10 retrappers
| 1417 | Dr M Ndlovu | 31 |
| 0 | Member of the public | 14 |
| 162 | Mr J Raijmakers | 2 |
| 32 | Dr HD Oschadleus | 2 |
| 1060 | Dr PB Taylor | 2 |
| 1334 | Mrs R Pretorius | 1 |
| 1454 | Dr M Remisiewicz | 1 |
| 22919 | Mr Michael Brooks | 1 |
| 1121 | Mr JF du Plooy | 1 |
| 13237 | Mrs W Louwrens | 1 |
10 Latest ringing records
| safring | 7A08439 | 2025-10-25 | 2636S2534E |
| SAFRING | K46292 | 2025-06-02 | 2548S2809E |
| SAFRING | 732796 | 2025-03-31 | 3136S1845E |
| SAFRING | 891408 | 2025-03-03 | 2928S3015E |
| SAFRING | K50346 | 2025-01-11 | 2553S2816E |
| SAFRING | K34500 | 2024-11-02 | 2433S2704E |
| SAFRING | K34499 | 2024-11-02 | 2433S2704E |
| SAFRING | K47380 | 2024-09-22 | 2634S2535E |
| SAFRING | 7A12399 | 2024-06-05 | 2751S3225E |
| SAFRING | 7A08805 | 2024-04-23 | 2552S2812E |
10 Latest retraps/recoveries
| SAFRING | 7A10204 | 2021-02-27 | 2021-03-22 | 2 | 0y 0m 23d |
| SAFRING | 7A10206 | 2021-02-27 | 2021-02-28 | 2 | 0y 0m 1d |
| SAFRING | K37166 | 2007-08-11 | 2016-10-01 | 2 | 9y 1m 9d |
| SAFRING | BP05114 | 1969-02-08 | 2016-03-22 | 2 | 47y 1m 19d |
| SAFRING | K40773 | 2013-05-08 | 2016-01-17 | X | 2y 8m 24d |
| SAFRING | 796735 | 2014-05-17 | 2015-02-21 | 2 | 0y 9m 10d |
| SAFRING | 799121 | 2013-09-10 | 2013-10-31 | 2 | 0y 1m 21d |
| SAFRING | 781331 | 2010-05-11 | 2011-05-15 | 2 | 1y 0m 9d |
| SAFRING | 797057 | 2013-05-10 | 2011-03-14 | 2 | -2y -1m -8d |
| SAFRING | 843124 | 2007-11-15 | 2010-01-07 | 2 | 2y 1m 4d |
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 | BP05114 | 1969-02-08 | 2016-03-22 | 2 | 47y 1m 19d |
| SAFRING | 781921 | 1999-06-20 | 2008-11-24 | 2 | 9y 5m 25d |
| SAFRING | K37166 | 2007-08-11 | 2016-10-01 | 2 | 9y 1m 9d |
| SAFRING | 781921 | 1999-06-20 | 2007-06-05 | 2 | 7y 11m 27d |
| SAFRING | 731518 | 1975-01-14 | 1982-07-02 | 2 | 7y 5m 26d |
| SAFRING | 733262 | 1972-12-20 | 1976-08-09 | 2 | 3y 7m 8d |
| SAFRING | 711918 | 1972-03-17 | 1975-02-22 | 2 | 2y 11m 22d |
| SAFRING | 54610442 | 1968-07-25 | 1971-01-04 | 2 | 2y 5m 23d |
| SAFRING | 843124 | 2007-11-15 | 2010-01-07 | 2 | 2y 1m 4d |
| SAFRING | 754580 | 2007-04-04 | 2008-11-26 | 2 | 1y 7m 2d |
Long distance records
| Scheme | Ring # | Duration | Distance (Km) |
|---|---|---|---|
| SAFRING | 54605200 | 0y 11m 1d | 2224 |
| SAFRING | 54605273 | 0y 5m 19d | 1048 |
| SAFRING | 64604522 | 0y 10m 2d | 1008 |
| SAFRING | 64600445 | -2y -8m -16d | 994 |
| SAFRING | 725966 | 1y 4m 5d | 907 |
| SAFRING | 59701086 | 4y 3m 28d | 900 |
| SAFRING | 58700074 | 2y 0m 19d | 880 |
| SAFRING | 65703192 | 0y 10m 17d | 879 |
| SAFRING | 726976 | 3y 5m 28d | 717 |
| SAFRING | 58609564 | 0y 8m 20d | 714 |