Modifiers matching critter:

• small,
• scary,
• blooded,
• wonderful,
• smaller,
• unusual,
• marine,
• favorite,
• large,
• little,
• wild,
• spineless,
• common,
• furry,
• weird,
• annoying,
• agile,
• interesting,
• special,
• mythological,
• new,
• everyday,
• larger,
• unwelcome,
• urban,
• arctic,
• creepy,
• cute,
• parasitic,
• stuffed,
• unexpected,
• harmless,
• lowly,
• tiny,
• destructive,
• edible,
• big,
• fantastic,
• venomous,
• dead,
• foreign,
• microscopic,
• native,
• aquatic,
• beneficial,
• unwanted,
• local,
• exotic,
• outdoor,
• nocturnal,
• dangerous,
• australian,
• pesky,
• vicious,
• friendly,
• macro,
• terrestrial,
• cuddly,
• unique,
• riparian,
• rare,
• fluffy,
• weak,
• toothy,
• prehistoric,
• sensitive,
• nasty,
• fast,

Simple categories matching pesky:

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