Moorhen (Galinula chloropus, 🇩🇪 Teichhuhn, 🇵🇱 kokoszka).

Zwana też Kurką wodną.
Fajne zdjęcie.

Obrączka odczytana?

@Michal1570PL odczytane obie, zgłoszone do EURing

@Michal1570PL dziekuję!

@zvrt Why is the ring pixelated?

@mrc Datenschutz but seriously speaking, to prevent trolls from fake reporting bird ring numbers.

@zvrt Good move, respect the privacy of all living beings

Are trolls a problem in bird ring databases?

Real question, I know close to nothing about bird ringing. I recently tried to look up a local gull and have not even found any other option but "send an email with the ring number and a description of the bird and the location.

@mrc bird rinng databases are not public. However, if you report a bird ring (for instance here: https://app.bto.org/euring/lang/pages/rings.jsp) you will receive detailed history of the ringed bird starting from the original ringing data along with all reported sightings if applicable. If it is a migratory bird, sometimes it can be a fascinating read.

@mrc Concerning the bird ring database trolling, I don't know the scale of the problem, but rest assured that all reports are processed manually. To show respect for those responsible for this work, it is better to save them from having to deal with junk reports. A scientific bird ringer recommended pixelating to me.

@zvrt I'd be curious why data is not public. Do you know?

I've found one of these online forms back then but I the amount of apparent bureaucracy put me off. I also was not sure if I'm creating unnecessary work for humans for some 100% non-scientific interest in a single specimen of an extremely common bird (black headed gull).

But my perception might be wrong and my inquiry/input might have been welcome. Could not tell...

@mrc I'm not sure, but it might be related to technical issues, such as the database's outdated technology. However, I am just an amateur photographer who occasionally reports rings, not a ringer, so this is just my speculation.

@mrc If you are certain that all the data is correct, then every reported sighting has scientific value, even those involving the most common species. After all, that's why birds are ringed.

For those curious, these are an LLM's speculation on the "why": https://chatgpt.com/share/696f6ea9-b304-800f-8a76-54792406eb26

Most points sound very reasonable.

@mrc These are solid reasons. By the way, bird sighting databases (Ornitho, Cornell/Naturalist, etc.) are publicly visible, but often only to a limited extent. Ornitho.de hides reports of rare or endangered species. So, if you’re interested in observing a Hoopoe in Germany, for example, in places other than Kaiserstuhl, you have to rely on word of mouth.