Modifiers matching mammal:

• indigenous,
• exciting,
• small,
• large,
• omnivorous,
• breeding,
• smaller,
• sized,
• marine,
• amphibious,
• larger,
• flying,
• raised,
• diverse,
• lucky,
• canadian,
• cuddly,
• vicious,
• vagile,
• terrestrial,
• captive,
• varied,
• recent,
• big,
• fast,
• hoofed,
• carnivorous,
• wild,
• complex,
• related,
• curious,
• upland,
• warm,
• model,
• horned,
• sleek,
• typical,
• hairy,
• migratory,
• level,
• rabid,
• trophic,
• extant,
• primitive,
• charismatic,
• pesky,
• nonruminant,
• resistant,
• social,
• bodied,
• male,
• major,
• mental,
• riparian,
• endemic,
• dangerous,
• unwanted,
• macroscopic,
• particular,
• insectivorous,
• alternative,
• underwater,
• active,
• pelagic,
• seasonal,
• developed,
• higher,
• mobile,
• tropical,
• nonhuman,
• asian,
• real,
• bipedal,
• invasive,
• individual,
• arctic,
• toothed,
• strange,
• non-human,
• predacious,
• pregnant,
• sedentary,
• cute,
• dry,
• size,
• resident,
• local,
• ordinary,
• little,
• unique,
• verminous,
• newborn,
• heavy,
• european,
• moving,
• threatened,
• extinct,
• additional,
• feline,
• native,
• secretive,
• experimental,
• defenseless,
• adult,
• visual,
• fabulous,
• common,
• oceanic,
• important,
• tall,
• exotic,
• hooved,
• smart,
• fossorial,
• quadruped,
• advanced,
• modern,
• new,
• australian,
• multicellular,
• african,
• nonnative,
• piscivorous,
• furry,
• ungulate,
• prehistoric,
• soft,
• susceptible,
• diurnal,
• feral,
• precocial,
• wet,
• world,
• injured,
• blooded,
• orphaned,
• distant,
• commercial,
• familiar,
• expensive,
• sensitive,
• bigger,
• available,
• intelligent,
• dead,
• biting,
• ancient,
• huge,
• intermediate,
• destructive,
• rare,
• lower,
• abundant,
• wonderful,
• specialized,
• young,
• herbivorous,
• ruminant,
• polar,
• foreign,
• undesirable,
• nocturnal,
• valuable,
• domesticated,
• interesting,
• elusive,
• tiny,
• true,
• predatory,
• domestic,
• urban,
• sentient,
• mean,
• unusual,
• british,
• undomesticated,
• semiaquatic,
• arboreal,

Simple categories matching pesky:

• critter,
• bug,
• animal,
• pest,
• insect,
• creature,
• intruder,
• rodent,
• parasite,
• mammal,
• thing,