Announcing the release of the Marked Birds Database

It has been a while since I last wrote about the progress on the Marked Birds Database that I’m developing (apologies for that), but that doesn’t mean that no work has been done on it.

On the contrary: work has progressed so well over the last few months that I would like to officially announce that I’m going make the database publically available some time around the beginning of December 2016!

This means that anyone who wants to use it can download it for free for their own personal use.


I have updated the Database page with the latest information and screenshots, so please have a look to read up on what you can (and cannot) expect.

In the mean time

The database is currently going through its last phase of testing during which time I will start making videos to explain the working of it in detail. When all of that is completed, the release should follow soon after.

See you then!

2 thoughts on “Announcing the release of the Marked Birds Database

  1. Maarten,

    This looks like an excellent piece of sortware for recording gull (& other) re-sightings. It’s very generous of you to provide this free of charge considering all the work you must have put into it. I look forward to downloading a copy and using it in due course. Our small project colour-ringing 100 LBBGU chicks on Inchcolm in the Firth of Forth in July has already produced 9 re-sightings including 8 in Iberia already. It’ll be good to put them in your database.

    With kind regards,

    John Davies
    Lothian Ringing Group
    Edinburgh, Scotland

    • Hi John,

      Many thanks for you kind message.
      It would be great if you would use the database for your project and other sightings. Note that the system is also capable of generating life histories for sending out to observers. I can quite easily create a custom version for your project if you’re interested. Let me know once you’ve decided to fully use it.

      Best regards,


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