Birds like cockatoos express with head feathers. Head bobbing, crest up for excitement, back for fear. Various cues needed for accurate interpretation.
Birds use beak sounds to communicate: grinding signifies happiness, beak banging is courtship behavior, and tongue clicking indicates friendliness and greeting.
Decode bird behavior through eyes: closed/half-closed signals illness, wide pupils denote fear; "pinning" signifies excitement or aggression.
1 leg resting warms, stomping is territorial/nutrition, crouching scared/ready to play, lean forward to play, quivering is stress, side-to-side motion for courtship/escape.
Decode bird movements: Tail wagging is joy, fanning signals anger, bobbing indicates illness. Flapping cools or seeks attention, drooping suggests sickness or sleep issues.