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Greenfinch with leg tag.

mrmac · 2010-01-30 12:02:58

Watching a lovely pair of greenfinches at my bird feeder atm. Had to check up on the net what they are, as they're more yellow than green. Anyway, one of them has a silver tag on its' right leg. Any idea why a common irish garden bird would be tagged?

30-01-2010 1:02pm

#1

mrmac

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Watching a lovely pair of greenfinches at my bird feeder atm. Had to check up on the net what they are, as they're more yellow than green. Anyway, one of them has a silver tag on its' right leg.

Any idea why a common irish garden bird would be tagged?

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#2 30-01-2010 3:14pm

Judgement Day

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Many different quite common garden birds are ringed by BTO British Trust for Ornithology and Irish bird ringers. All sorts of data is gleaned from recovered birds bearing rings (dead) or frequently retrapped years after being ringed. Statistics regarding mortality, migration etc.etc...

More info here: http://www.bto.org/ringing/ringinfo/index.htm

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#3 31-01-2010 9:27am

Mothman

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I had birds ringed in my garden for about 3 years.

A number of years later I found a dead Great Tit. It was ringed in my garden as a near one year old 7 years earlier.

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