What Does It Mean When a Cockatiel Puffs Up? The Complete Guide to Cockatiel Puffing Behaviour — Normal vs Sick, Body Language Decoded, & When to See a Vet
📌 Quick Answer: When a cockatiel puffs up, it can mean many things — from normal warmth-seeking and contentment to illness, fear, or breeding behaviour. The key is to read the combination of signals: body posture, crest position, eye state, and time of day. This guide gives you a complete decision framework to decode every type of puffing in your cockatiel. Why Do Cockatiels Puff Up? The Science Behind Feather Fluffing If you have ever watched your cockatiel suddenly transform from a sleek, slender bird into a round, fluffy ball, you have witnessed one of the most common — and most misunderstood — cockatiel behaviours. Puffing up, also called 'feather fluffing' or 'thermal fluffing', is when a cockatiel raises its feathers away from its body, trapping pockets of warm air beneath them. This creates a natural insulating layer — essentially a built-in blanket. But here is what most articles fail to explain: puffing up is not one behaviour with one meaning. It is a s...