Head shaking

The dog shakes its head, often repeatedly, without shaking other parts of its body. The movement is similar to that exhibited by dogs experiencing pain or discomfort in their ears.
(Shilder, 2004; Schoening, 2006; Capra, 2011)

This male Golden Retriever is shaking his head.

This mixed breed female is shaking her head.

VIDEO

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This American Staffordshire glances at an unfamiliar person and barks, shaking its head, then seeks support from its owner and licks its nose.

floor licking<>head toss