Modifiers matching songbird:

• small,
• colorful,
• american,
• dead,
• resident,
• migratory,
• larger,
• beautiful,
• migrant,
• european,
• smaller,
• passerine,
• insectivorous,
• native,
• wild,
• breeding,
• british,
• tiny,
• common,
• local,
• familiar,

Simple categories matching migratory:

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