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Category: Archive

Archive/Bird ringing/Birding/Birds/Citizen Science

Open Day for bird ringing : Grotto Bay [originally planned for 15 November 2025, but postponed to] 29 November 2025

Posted on 19/10/2025 by Les Underhill

The BDI is holding an Open Day for bird ringing at Grotto Bay on Saturday, 29 November 2025 15 November 2025. We will be hosted by the local community at Grotto...

Archive/Biodiversity/Bird ringing/Birding/Birds/Citizen Science

Bird ringing at Nuwejaars Wetlands SMA : 7 to 12 October 2024

Posted on 03/10/2025 by Les Underhill

This was the first bird ringing visit to the Nuwejaars Wetlands SMA (Special Management Area). Our objective was to start the process of finding good ringing si...

Total head Southern Red Bishop
Archive

Bird ringing at Nuwejaars Wetlands SMA : 19 to 23 September 2025

Posted on 27/09/2025 by Les Underhill

We are reporting on our eighth bird ringing expedition to the Nuwejaars Wetlands. We were here from Friday 19 to Tuesday 23 September 2025, four nights. As with...

Arrival and peak abundance of Barn Swallows
Archive/Bird ringing/Birds/Citizen Science/Data and statistics/Migration

Arrival and peak abundance of Barn Swallows in three regions of South Africa in relation to climate indices, deduced from SABAP2 data

Posted on 26/09/2025 by Les Underhill

A paper on the migration of Barn Swallows has been published Open Access in the journal Birds. Publication date was 9 September 2025. The authors, title and jou...

Archive/Biodiversity/Bird ringing/Birding/Birds/Citizen Science/Vanrhynsdorp

Bird ringing at Botuin, Vanrhynsdorp : 23 to 27 August 2025

Posted on 28/08/2025 by Les Underhill

We were bird ringing at Botuin, Vanrhynsdorp, at the peak of the spring wildflower season. We didn’t do any dedicated trips to the special touristy flower...

Archive/Bird ringing/Birding/Birds

Bird ringing at Alte Kalköfen Bird Observatory : 5 to 12 February 2025

Posted on 18/08/2025 by Les Underhill

Where is the Alte Kalköfen Bird Observatory? The Alte Kalköfen Bird Observatory is in southern Namibia, along the B4, the main road between Keetmanshoop, via Au...

Archive/Biodiversity/Bird ringing/Birding/Birds/Citizen Science/Trip report

Bird ringing at Nuwejaars Wetlands SMA : 9 to 14 August 2025

Posted on 15/08/2025 by Les Underhill

This is a report on our seventh bird ringing expedition to the Nuwejaars Wetlands. We were here from Saturday 9 to Thursday 14 August 2025, five nights. This se...

Archive/Bird ringing/Birding/Birds/Citizen Science

Bird ringing and brunch at Zandvlei : 21 December 2024

Posted on 24/07/2025 by Les Underhill

On Saturday 21 December 2024, we invited all the bird ringers in Cape Town to celebrate a year of enjoying birds. It was an special opportunity for the bird rin...

Archive/Biodiversity/Bird ringing/Birding/Birds/Citizen Science/Site report/Vanrhynsdorp

Bird ringing at Botuin, Vanrhynsdorp : 29 March to 4 April 2025

Posted on 13/07/2025 by Les Underhill

We had neglected our Vanrhynsdorp ringing sites since November last year, so this visit was overdue! You can read the report on that trip here. This blog summar...

Archive/Biodiversity Observations/Site report

Researcher heaven : publications on biodiversity on Robben Island

Posted on 01/07/2025 by Les Underhill

Imagine. You are a new postgraduate student on Robben Island. You know you have lots of predecessors, and that you need to read up on all the research has alrea...

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  • Home
  • Departments
    • Research Training
      • Introduction
      • Research Themes
      • Study Sites
      • Logistics
    • Bird Ringing
      • Introduction
      • Ringing history
      • The Value of Bird Ringing
    • Science and Ecology Specialist Consulting
    • Citizen Science – Biodiversity Conservation & Research
    • Biodiversity Observations
  • About
    • What we do
    • Who we are
    • Contact us
  • News
    • Archive
    • BDI Research
    • BDI Bridge
    • BDInsight
  • Upcoming BDI events
  • Biodiversity Projects
    • Bird Feeder Project
    • Atlas of Frogs & Toads
    • Atlas of African Neuroptera and Megaloptera
    • Atlas of Dragonflies & Damselflies
    • Atlas of Butterflies & Moths
  • Karoo Research Centre

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The Biodiversity & Development Institute is a non-profit company registered with the Companies and Intellectual Property Commission of South Africa (CIPC), Reg. No. 2015/136344/08.
Registration in terms of the Non-Profit Organisations Act: 302-671 NPO.


Directors:
Prof Les Underhill, Ms Sue Gie, Jorn Das
les@thebdi.org
072 062 1140


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