7.2K views · 64 reactions | Whether it’s hitting our cars (annoying), ourselves (unthinkable) or our loved ones (let’s face it, quite funny), we all dread the white splatters that the birds above rain down on us. But is it that splatter pee or poo?  NHM scientist Alex Bond is here to answer the big question in this week’s #SurprisingScience ️ #Birds #NaturalHistory #Poo #Pee #Science #Biology #Guano | Natural History Museum, London | Facebook