Modifiers matching amphibian:

• resident,
• small,
• aquatic,
• tropical,
• moist,
• terrestrial,
• larger,
• familiar,
• large,
• semiaquatic,
• common,
• rare,
• modern,
• exotic,
• nocturnal,
• adult,
• native,

Simple categories matching nocturnal:

• creature,
• disturbance,
• animal,
• snake,
• song,
• mammal,
• insectivore,
• predator,
• movement,
• activity,
• insect,
• varmint,
• fish,
• inhabitant,
• amphibian,
• pest,
• pollinator,
• fauna,
• behavior,
• carnivore,
• raptor,
• prey,
• feeder,
• crustacean,
• species,
• cat,
• organism,
• marsupial,
• reptile,
• critter,
• lemur,
• denizen,
• bug,
• bird,
• rodent,
• lepidopteran,
• gecko,
• lizard,
• invertebrate,
• form,
• scavenger,