SAFRING results

Kori Bustard Ardeotis kori

1. Numbers ringed with SAFRING rings, 1948-2001

• Total ringed: 96
• First ringed: 1953/54 ringing year
• Trapping method: Nestlings; Torch netting at night (Geyser 2000)

Number of Kori Bustards ringed per year with SAFRING rings

2. Computerised records, 1975-2001

• Number of records: 95
• Ring sizes used: 51 with 19 mm, 44 with 26 mm rings
• Recommended ring size: 19 mm (females) or 26 mm (males) Stainless steel (T Osborne)
• Top ringers: 5 ringers: Mr T Osborne (90), Mr D Heinrich (2), Mr A Maritz (1), Mr F Taljaard (1), Mr R Geyser (1)
• Bird age distribution: Unknown (1), Nestling (22), Juvenile (2), Immature (1), Adult (56), 0-6 months (5), 1-2 years (3), 2-3 years (5)
• Bird sex distribution: Unknown (4), Male (36), Female (50), Possibly male (3), Possibly female (2)
• Markings: Metal only (6), Metal plus colour rings (3), Wing tag (84), Radio transmitter (2; plus about 50 not originally coded, T osborne)
• Condition: Good (64), Rehabilitated (1), ? (30)
• Birds ringed per region:

  Locality	n
  Namibia	92
  Northern Cape, South Africa	3

Map of localities where Kori Bustards have been ringed, 1975-2001

3. Biometrics and moult

Mass data (kg) for Kori Bustards

Age	n	Min	Mean	Max
Adult male	20	7.2	11.30	15.2
Adult female	35	4.3	5.62	6.7

Wing length (mm) for Kori Bustards

Age	n	Min	Mean	Max
Adult male	9	680	726.0	766
Adult female	23	560	602.5	645

Moult data

Birds showed primary moult January to May.

4. Recovery history (SAFRING's database)

• Number of recoveries: 2 recoveries and 3 recaptures
• Greatest distance: 11 km (G21355)
• Greatest elapsed time: 0y 9m 26d (G21452)
• Causes of mortality of ringed birds: Killed by carcal (G21355, J12638)

5. Ringing references

Geyser, R. 2000. Trapping a Kori Bustard with a torch and handnet. Safring News 29:53.