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Message: <blockquote data-quote="wolfbirder" data-source="post: 1703262" data-attributes="member: 28091">The test should be able to tell whether the bird has at some time been fed as a captive bird shouldnt it? Because I gather such captive birds would be fed on a mixture of items including non-native mice for example, somehwta different mix to wild birds. But this bird may, for example, be the offspring of birds such as those at Dunsop Bridge. Have all youngsters at known UK nesting sites been ringed? Including all those born within the Thetford Forest population.There are so many variables to consider even if I like many would like to believe the bird proves natural vagrancy from mainland Europe.Love to see a full report, can someone ask for a copy from Lee Evans if it is not available generally?</blockquote>