of disrupting a business that's worth £15 billion a year. although many online sites have worked to remove illicit content, the system's found around 10,000 classified ads all over the world for the sale of potentially endangered species and their parts. we showed our film to rowan martin of the world parrot trust, whose expertise in parrots and trafficking is helping the project's researchers. so, rowan, that was obviously undercover filming that colleagues of ours did in bangladesh. what do you think of all that? a lot of those would be endangered species, but it might not necessarily be illegal trade. the conversation switches from this sort of legal side of things to more grey areas, where he is offering up or explaining how he can import large wholesale quantities of wild core african grey parrots into bangladesh.