Mondo Knows Facts

Leg rings tell researchers where birds go

A numbered band reported by a finder gives a place, a date and a lifespan Ringing schemes have run for over a century and depend on members of the public reporting finds. Colour rings let observers read a bird's code without catching it again. Satellite and radio tags now add continuous tracks. It sits in Mondo's animals collection, one of 200 facts that each trace back to the reference below.

Leg rings tell researchers where birds go: Worn rings of Carrion Crow ( Corvus corone ) W003 in the
Marie-Lan Taรฟ Pamart ยท CC BY 4.0 ยท licence ยท source

Where this comes from

British Trust for Ornithology

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Tags: fieldwork, birds, tagging

Leg rings tell researchers where birds go: the short answers

Where does this come from, and can I check it?
A numbered band reported by a finder gives a place, a date and a lifespan. The figure is taken from British Trust for Ornithology, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?
Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.