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Tweet of the Day is the voice of birds and our relationship with them, from around the world.

Liz Bonnin presents the gaunt undertaker-looking marabou stork in Africa. It is not very scientific to describe a bird as ugly, but the marabou stork would not win any prizes for beauty or elegance. This bulky stork, with a funereal air, has a fleshy inflatable sac under its throat which conspicuously wobbles as it probes African rubbish dumps for carrion. Seemingly more at home amongst the melee of vultures and jackals squabbling over a carcass, it is known in some areas as the undertaker bird. But, in the air the marabou stork is an elegant sight. It has one of the largest wingspans of any bird, up to 3 metres across. Soaring effortlessly on these broad wings the storks scan the sub-Saharan landscape for food. Marabou storks are doing well, thanks to our throwaway society and they've learned to connect people with rubbish – a salutary association one might say.

Producer : Andrew Dawes