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What actually is a Darvic ring please?

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Old Friday 8th September 2006, 19:44   #1
Richard
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What actually is a Darvic ring please?

Could any one tell me what a Darvic ring is please? Is it a particular type of ring? Is it a place or an area?

Thank you

Richard
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Old Friday 8th September 2006, 19:59   #2
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Darvics are numbered plastic rings which are read in the field, for example on Mute Swans. The name comes from the Darvic PVC sheeting used to make the rings. They were considered virtually indistructible but I head theat older Darvics (exposed to water and air, getting a bit brittle) were likely to shatter if hit by shotgun pellets.

http://www.par-group.co.uk/plastics.aspx?page=1014
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Old Saturday 9th September 2006, 06:49   #3
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Thanks Touty,

That's an interesting link. There is a White Stork in Nottinghamshire which has a Darvic ring. According to the bird news services the bird was ringed in Holland suggesting it is a true vagrant. A friend also told me that the bird must be wild 'because it has a Darvic ring'. I guess the latter statement is not necessarily true.

Would you happen to know where I could go to find out more about where and when the bird was ringed please?

Thanks again

Richard
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Old Saturday 9th September 2006, 21:54   #4
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I think I have seen in the last few days a mention somewhere that the Stork was from an introduction scheme so sounds a bit dodgy to me tickwise.

Can anyone expand on that?
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Old Sunday 10th September 2006, 06:39   #5
Richard
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Quote:
Originally Posted by Andrew
I think I have seen in the last few days a mention somewhere that the Stork was from an introduction scheme so sounds a bit dodgy to me tickwise.

Can anyone expand on that?

'Tis what I think but several people have told me that the yellow Darvic ring indicates that it was ringed in Holland as a wild bird. There must be a way of following up on that. At least I know what Darvic means now.

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Old Tuesday 12th September 2006, 12:19   #6
Mark Grantham
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There's been much mention of this Dutch-ringed White Strok, but I must admit I've failed to find out who thinks its Dutch and why! It doesn't have a metal ring, so as far as most would be concerned this isn't a wild bird.

Mark Grantham
BTO Ringing Unit
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Old Tuesday 12th September 2006, 15:00   #7
Richard
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Quote:
Originally Posted by Mark Grantham
There's been much mention of this Dutch-ringed White Strok, but I must admit I've failed to find out who thinks its Dutch and why! It doesn't have a metal ring, so as far as most would be concerned this isn't a wild bird.

Mark Grantham
BTO Ringing Unit

Thank you for this Mark

Richard
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Old Tuesday 12th September 2006, 17:25   #8
Touty
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Quote:
Originally Posted by Mark Grantham
There's been much mention of this Dutch-ringed White Strok, but I must admit I've failed to find out who thinks its Dutch and why! It doesn't have a metal ring, so as far as most would be concerned this isn't a wild bird.

Mark Grantham
BTO Ringing Unit
One naughty English ringer many moons ago began to put the Darvic ring OVER the metal ring ... (name ring any bells, Mark? ). He was soon politely asked to stop doing it 'cos we had to take the Darvic off to read the BTO one.
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Old Tuesday 12th September 2006, 18:17   #9
Atricapilla
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Quote:
Originally Posted by Andrew
I think I have seen in the last few days a mention somewhere that the Stork was from an introduction scheme so sounds a bit dodgy to me tickwise.

Can anyone expand on that?
Rumour control says it might be an escapee from Harewood House in Leeds!!!
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Old Tuesday 12th September 2006, 18:33   #10
Richard
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Quote:
Originally Posted by bobwoodcock
Rumour control says it might be an escapee from Harewood House in Leeds!!!
Wouldn't be the first we have had in Notts!

Do you have a contact there so that I can ask which colours and numbers they are using?

Thanks

Richard
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Old Tuesday 12th September 2006, 18:40   #11
Atricapilla
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Quote:
Originally Posted by Richard
Wouldn't be the first we have had in Notts!

Do you have a contact there so that I can ask which colours and numbers they are using?

Thanks

Richard

Sorry Richard I have'nt but Google says:-
info 'at' harewood.org,
Tel +44 (0)113 218 1010.
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