They also adore flowers high in nectar, like banksias and salvias and just now, red hot pokers, except ours are yellow, not red. As well as the nectar there are hundreds of small insects gobbling the nectar that fairy wrens like too. Wrens will also do away with small grasshoppers, flies caught in cobwebs, and the fairy wren version of take-away, sitting just above our fly traps, where dinner comes to them.