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Message: <blockquote data-quote="ColonelBlimp" data-source="post: 1406048" data-attributes="member: 63179">However, out of the birds listed that are increasing, all but one (Pied Wagtail) regularly come to feeders in gardens. To what extent this is alleviating losses caused by cats is unclear. As is the levels these birds should be at without human interference. Interfering with numbers in this way is clearly dangerous as it poses the threat of destabilising populations in certain areas without a balance of positive and negative anthropomorphic influences.Theoretically, we are in a purely 'natural' situation now-the environment is being changed by a certain interestingly well-adapted primate to suit its needs. The most important question we need to ask ourselves therefore, instead of semantical questions about what is "natural" and what is not, is how much we must fight to limit the overriding trend of human expansion to defend as much of the pre-us (in want of a better term) ecology for its own sake or for how we value it.To limit the actions of an introduced predator who, irregardless if the losses it causes threaten the existence of these birds, is evidently harming the ecology (to other things as well as birds), isn't much to ask, is it?</blockquote>