The World Owl Trust say their current agreement with the estate managers is being terminated and unless they can negotiate new arrangements, they'll have to leave by May 2015.
The charity claims the new terms are not financially viable, but the estate say negotiations are ongoing and in tough financial times it's having to review the way the owl centre is run.
The Muncaster estate says it's willing to negotiate but the Trust says it's looking for new premises. Honorary President Tony Warbuton said: "the owl trust is looking for somewhere new to be based, we do not feel we are wanted anymore at Muncaster."
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High pressure brings a mainly dry spell. Winds become lighter. Feeling warmer in any sunshine during Wednesday
The second of our special reports looks at the history of the Borders Railway - starting with the closure of the Waverley Line in 1969.
Predominantly dry over the coming few days with variable cloud & some sunshine. Cool nights but daytime temperatures recovering a little