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- noun Plural form of
Sorry, no etymologies found.
Fairy and scrubwrens have very similar alarm calls - a high-pitched piping noise - so the fairy-wren may have automatically recognised the alarm call of the scrubwren.
That suggests, says Magrath, that, rather than being hard-wired, the fairy-wren needed to have heard the scrubwrens 'alarm call, and learnt that it meant danger.