article_snippet.sent: It's not a migrating bird - it's not supposed to be here at all - and we can only assume it is one that has got lost. '
article_snippet.sent: We only think that it has got mixed up in a flock of migrating birds and made it way here.
article_snippet.sent: It is quite a strange affair.
article_snippet.sent: We don't know how long it has even been here. '