Reservations About 'Conservation'

There has been a lot of media support on 'The One Show' by Mike Dilger  for the activities of Mrs Tiggy-winkles hospital for 'wildlife casualties' (http://www.sttiggywinkles.org.uk/). My basic concern is that many of the organisms featured, given a 'second chance', are actually alien species (such as Sika deer) that are subsequently released into areas that might well suffer from their attentions. I do think that people operating in this fashion ought to think very clearly about what they are really doing (the fact that humans caused the problem can't be the only justification).