Migratory birds may carry a virus from comming into contact.Logical formLearned from3 sentences. Migratory birds may carry a virus from having contact.Logical formLearned from3 sentences. Tests can be on some migratory birds.Logical formLearned from3 sentences. Lake may attract migratory birds.Logical formLearned from3 sentences. Samples may be took from migratory birds.Logical formLearned from3 sentences. Experts may call for a testing of a flock of migratory birds.Logical formLearned from3 sentences. Large numbers of migratory birds may die from (bird flu).Logical formLearned from3 sentences. Migratory birds can be (tourist attraction).Logical formLearned from3 sentences. Some birds may kill some migratory birds.Logical formLearned from3 sentences. Migratory birds may head from a continental-region.Logical formLearned from3 sentences. Attempts may pay_off with migratory birds.Logical formLearned from3 sentences. Droppings may pertain-to migratory birds.Logical formLearned from3 sentences. Affairs can be migratory.Logical formLearned from2 sentences. A condition can be migratory.Logical formLearned from2 sentences. Point can be for migratory birds.Logical formLearned from2 sentences.