SAFRING results

Whitewinged Black Korhaan Eupodotis afraoides

1. Numbers ringed with SAFRING rings, 1948-2001

• Total ringed: 104
• First ringed: 1960/61 ringing year
• Trapping method: Torch netting at night, Nestlings

Number of Whitewinged Black Korhaans ringed per year with SAFRING rings

Note that a total of 42 (average 10.5 per year) were ringed in the period 1970-73; the individual year totals are not known.

2. Computerised records, 1948-2001

• Number of records: 47
• Ring sizes used: 32 with 8 mm, 2 with 10 mm, 8 with 11 mm, 2 with 12.5 mm, 2 with 635 prefix, 1 with 645 prefix rings
• Recommended ring size: 8 mm Aluminium alloy (T Osborne)
• Top ringers: 8 ringers; top 5 ringers: Mr T Osborne (24), Mr D Heinrich (10), Barberspan (6), Mr DJ Van Niekerk (2), Mr JJ Herholdt (2)
• Bird age distribution: Nestling (1), Juvenile (2), Immature (5), Adult (38), 6-12 months (1)
• Bird sex distribution: Unknown (4), Male (22), Female (21)
• Markings: Metal only (28), Metal plus colour rings (16), Wing tag (3)
• Condition: Good (47)
• Birds ringed per region:

  Locality	n
  Namibia	34
  Northwest Province, South Africa	6
  Northern Cape, South Africa	4
  Free State, South Africa	3

Map of localities where Whitewinged Black Korhaans have been ringed, 1948-2001

3. Biometrics and moult

Mass data (g) for Whitewinged Black Korhaans

Age	n	Min	Mean	Max
Adult male	17	525	754.8	875
Adult female	16	538	735.3	870

Wing length (mm) for Whitewinged Black Korhaans

Age	n	Min	Mean	Max
Adult male	13	267	274.4	280
Adult female	7	249	264.7	278

Moult data

Some birds were completing primary moult in January.

4. Recovery history (SAFRING's database)

• Number of recoveries: 6 recoveries and 2 recaptures
• Greatest distance: 12 km (610738)
• Greatest elapsed time: 5y 6m 3d (63503935)
• Causes of mortality of ringed birds: Sick or injured (3), Killed or attacked by wild mammal (3)

5. Ringing references

None.