Like other fairywrens, the Superb Fairywren is notable for several peculiar behavioural characteristics ; the birds are socially monogamous and sexually promiscuous, meaning that although they form pairs between one male and one female, each partner will mate with other individuals and even assist in raising the young from such pairings.
Like other fairywrens, the Superb Fairywren is notable for its marked sexual dimorphism, males adopting a highly visible breeding plumage of brilliant iridescent blue contrasting with black and grey-brown.
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