Shouldn't this question on the hunting of prairie dogs be reopened, since it is now closed as a duplicate and the question it is pointing to has been deleted? To have questions closed as duplicates only makes sense if they point to a question that is clearly asking about the same thing, that ideally has usuful answers. To have duplicate pointers that doesn't lead to anything puts the question marked as duplicate "in limbo", since it cannot get an answer but at the same time it hasn't been labelled as off-topic either. I have already flagged the question to the moderators and pointed this out, but so far nothing has happened.
For the record, I don't think that the question should have been closed as a duplicate in the first place (the original question by the same poster should have been edited instead of posting a second question though). If users feel that the question linked above should be closed for another reason this would still be possible, but that should be decided in a new voting process, which would also provide feedback to the OP. Only having the question closed as a duplicate clearly doesn't do this.