Species of migratory birds may pass through a region.Logical formLearned from1 sentences. (Wood warblers) can be migratory.Logical formLearned from1 sentences. Migratory birds may pass through a us-state.Logical formLearned from1 sentences. A spring can be constituted-of-or-filled-with migratory birds.Logical formLearned from1 sentences. A spring of migratory birds may pass through a state.Logical formLearned from1 sentences. A native can be migratory.Logical formLearned from1 sentences. (Fruit pickers) can be migratory.Logical formLearned from1 sentences. Common quails of a continent can be migratory.Logical formLearned from1 sentences. (Breeding species) can be migratory.Logical formLearned from1 sentences. A migratory bird can be extinct.Logical formLearned from1 sentences. A migratory bird may belong to a (pigeon family).Logical formLearned from1 sentences. Common name can be for a migratory bird.Logical formLearned from1 sentences. A case may pertain-to migratory locusts.Logical formLearned from1 sentences. Migratory locusts can be destructive.Logical formLearned from1 sentences. A (winter home) can be for some species of migratory birds.Logical formLearned from1 sentences.