Oh the irony! Brian May being an advocate for both badgers and hedgehogs! What May, Packham et al know, but refuse to acknowledge, since it does not suit their agenda, is that the massive decline in the hedgehog population is in direct correlation to the exponential rise in badger numbers. Why? Because there is nothing a badger enjoys more as an amuseè bouche than a hedgehog, before feasting on ground nesting birds, their eggs or young. Hedgehogs, being slow moving, do not stand a chance against a badger any more than skylarks, curlews, partridge, plovers or any other ground nesting birds, all of which are in serious decline.
Conservation, ( contrary to the belief of 'animal lovers' AKA animal sentimentalists), does NOT mean the preservation of everything at all costs, but, rather, a pragmatic approach, the judicious control, (note: control, not extermination), of some species, in order to allow others to survive. Hence the need to control magpies, crows and other corvids, squirrels too, all of them growing in numbers, all of them notorious raiders of the nests of small birds which, conversely, are in decline. Likewise mink require controlling so that water voles have, at least, a fighting chance of surviving extinction in the UK.
Packham is not a conservationist, he is, and never will be, in the same league as Attenborough, he lacks the pragmatism and vision to see a wider and more holistic picture, driven by his arrogance and own private agenda.