Some migratory birds may be seen at a wildlife-refuge.Logical formLearned from1 sentences. Some migratory waterfowl may use waters.Logical formLearned from1 sentences. A (mountain bluebird) can be a migratory bird.Logical formLearned from1 sentences. Migratory birds may include a goose.Logical formLearned from1 sentences. Migratory birds may be found in a us-state.Logical formLearned from1 sentences. Migratory birds may include a flycatcher.Logical formLearned from1 sentences. Migratory waterfowl may include a goose.Logical formLearned from1 sentences. Migratory birds may include species of herons.Logical formLearned from1 sentences. Some gulls can be migratory.Logical formLearned from1 sentences. Flycatchers can be migratory.Logical formLearned from1 sentences. Ducks of continents can be migratory.Logical formLearned from1 sentences. Divorces can be migratory.Logical formLearned from1 sentences. Crows can be migratory.Logical formLearned from1 sentences. Apiaries can be migratory.Logical formLearned from1 sentences. Species of bats can be migratory to some degree.Logical formLearned from1 sentences.