Pairs of magpie-larks use choral skills to intimidate rivals.

Pairs of Australian magpie-larks (Grallina cyanoleuca) that sing in tune and in tempo are more threatening to rivals whose territory they move in on than pairs that can’t quite get their twittering coordinated.

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Pairs of magpie-larks use choral skills to intimidate rivals.

Pairs of Australian magpie-larks (Grallina cyanoleuca) that sing in tune and in tempo are more threatening to rivals whose territory they move in on than pairs that can’t quite get their twittering coordinated.

Read more here