Tern, White-winged

Chlidonias leucopterus

Ringed: 420 | Retrapped: 6 | Recovered: 3

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

100 WBC club 97
280 Mr A Tree 86
109 J Robson 23
331 Prof D Cyrus 22
101 Mr T Archibald 20
218 Mr M Waltner 20
246 Mr T Robertson 17
815 Mr MD Anderson 15
269 MR G Scholtz 14
215 Mr G Underhill 8

Top 10 retrappers

280 Mr A Tree 6

10 Latest ringing records

SAFRING 4H93252 2025-06-05 1441S2237E
SAFRING BJ48604 2024-04-02 1552S2712E
SAFRING BJ43551 2023-03-30 1555N1630W
SAFRING BH73706 2013-04-02 1429N1705W
SAFRING BH76288 2012-01-10 1535N3229E
SAFRING 489674 2009-03-30 2634S2536E
SAFRING FA85296 2007-11-24 1059N1459E
SAFRING BH33319 2006-12-23 2026S2250E
SAFRING BH33316 2006-12-22 2026S2250E
SAFRING CV25452 2006-12-22 2025S2250E

10 Latest retraps/recoveries

SAFRING BC44364 2001-03-16 2002-04-11 2 1y 0m 1d
SAFRING BC63471 2000-12-16 2001-03-15 2 0y 2m 29d
SAFRING BC40639 2000-02-01 2000-09-21 X 0y 7m 23d
SAFRING BB60890 1990-09-29 1991-11-09 2 1y 1m 16d
SAFRING 252896 1972-12-19 1978-04-15 X 5y 3m 23d
SAFRING 247053 1971-12-05 1972-01-08 X 0y 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 BB60890 1990-09-29 1991-11-09 2 1y 1m 16d
SAFRING BC44364 2001-03-16 2002-04-11 2 1y 0m 1d
SAFRING BC63471 2000-12-16 2001-03-15 2 0y 2m 29d

Long distance records

Scheme Ring # Duration Distance (Km)
SAFRING 252896 5y 3m 23d 8629
SAFRING BC40639 0y 7m 23d 4412
SAFRING BC63471 0y 2m 29d 564
SAFRING BB60890 1y 1m 16d 0
SAFRING BC44364 1y 0m 1d 0
SAFRING 247053 0y 1m 4d 0