Modifiers matching vertebrate:

• flightless,
• lower,
• mammalian,
• simple,
• small,
• large,
• oviparous,
• moving,
• migratory,
• terrestrial,
• higher,
• pelagic,
• poikilothermic,
• charismatic,
• jawless,
• young,
• primitive,
• adult,
• bony,
• fossil,
• insectivorous,
• diurnal,
• flying,
• breeding,
• amphibious,
• level,
• scaled,
• larger,
• intelligent,
• familiar,
• australian,
• complex,
• marine,
• sensitive,
• smaller,
• wild,
• ectothermic,
• fossorial,
• aquatic,
• big,
• nonhuman,
• warm,
• omnivorous,
• dead,
• related,
• modern,
• common,
• female,
• developed,
• sized,
• herbivorous,
• supplemental,
• additional,
• blooded,
• social,
• extinct,
• nonnative,
• mobile,
• tiny,
• ancient,
• native,
• cold,
• territorial,
• invasive,
• animal,
• scaly,
• rare,
• cartilaginous,
• captive,
• available,
• antarctic,
• distant,
• skinned,
• trophic,
• arboreal,

Simple categories matching flying:

• fragment,
• object,
• expense,
• insect,
• vehicle,
• bird,
• toy,
• track,
• area,
• creature,
• disk,
• animal,
• fauna,
• contraption,
• mammal,
• prey,
• debris,
• beast,
• weather,
• disc,
• bug,
• hazard,
• condition,
• serpent,
• organism,
• raptor,
• particle,
• pest,
• part,
• aircraft,
• sign,
• piece,
• missile,
• rock,
• system,
• surface,
• structure,
• pet,
• vertebrate,
• matter,
• unit,
• seabird,
• fowl,
• characteristic,
• dinosaur,
• moth,
• body,
• jewel,
• material,
• mount,
• event,
• device,
• organization,
• article,
• command,
• giant,
• species,
• waterfowl,
• character,
• machine,
• arthropod,
• craft,
• thing,
• substance,
• instrument,
• reptile,
• projectile,
• training,
• predator,
• activity,
• means,
• vessel,
• insectivore,