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All years Observers: 1220 Cards: 87319 Records: 4617785 Incidentals: 354986 Pentads: 11762 (67.92%)
2013 Observers: 409 Cards: 5728 Records: 294871 Incidentals: 24664 Pentads: 2485 (14.35%)
WinterMAP Observers: 163 Cards: 556 Records: 25003 Incidentals: 2856 Pentads: 443 (2.56%)
White-winged Tern
(Chlidonias leucopterus)
  • Google map of distribution

  • SABAP2 Distribution (Static)
      Map showing the current distribution of records for the White-winged Tern

  • SABAP2 vs SABAP1
      Map showing the distribution changes between SABAP1 and SABAP2.

  • SABAP1 distribution
      Smoothed SABAP1 distribution

  • SABAP1 Texts
      PDF of the SABAP1 pages for the species.
    • Map of the SABAP2 distribution, overlaid on the SABAP1 distribution
    Seasonal variation in reporting rates
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    © Animal Demography Unit 2011 Department of Zoology - University of Cape Town
    website by michael brooks