Modifiers matching bat:

• large,
• young,
• migratory,
• little,

Simple categories matching migratory:

• activity,
• bird,
• fish,
• goose,
• clupeid,
• prey,
• ungulate,
• songbird,
• bat,
• waterfowl,
• seabird,
• shark,
• organism,
• waterbird,
• animal,
• cell,
• host,
• predator,
• feature,
• orthopteran,
• insect,
• herbivore,
• shorebird,
• vertebrate,
• pollinator,
• mammal,
• wildfowl,
• creature,
• beast,
• giant,
• pest,
• species,
• finch,
• crustacean,