Debate - When it comes to conservation of endangered birds, should it be pursued no matter what the cost or practicalities?    When it comes to conservation of endangered birds, should it be pursued no matter what the cost or practicalities? Given that extinction of birds can affect the ecosystem whose effects may be known only in the long run. But, in some cases it may be very difficult and expensive to go about implementing the actual task of conservation. In that case, should the resources be dedicated to conservation other endangered species?