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| info please http://lbcarchive.co.uk/forum/viewtopic.php?f=4&t=6484 |
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| Author: | Chris Grimshaw [ Sun Oct 14, 2007 10:53 pm ] |
| Post subject: | info please |
I recently watched three bird ringers in Mexico clip about a quarter of an inch off a wing feather of two northern waterthrushes. Is this usual and what was the purpose of it. I would be grateful if someone could let me know Thanks Chris |
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| Author: | Stuart Britton [ Mon Oct 15, 2007 2:28 pm ] |
| Post subject: | |
This is a practice I have never heard of and certainly is not permitted in the UK. I cannot think of any practical reason for doing so and is a serious bird welfare issue. I would suggest you contact the BTO Ringing Section to see if they can assist. |
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| Author: | Chris Grimshaw [ Mon Oct 15, 2007 6:14 pm ] |
| Post subject: | |
Thanks Stuart I have asked the question and will post the reply here if I receive one. I must emphasise that it didn't seem to harm the birds who flew off happily on release Chris |
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| Author: | Chris Grimshaw [ Wed Oct 17, 2007 8:22 pm ] |
| Post subject: | |
I have now received a reply which I duplicate below Thanks for your email enquiry regarding the clipping of feathers. This is permitted in UK under licence. Usually this is a maximum of 1cm off the inner wing feathers or more often the tips of the outer tail feather. This is usually used for isotope analysis. Chris |
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