Using the 10K tools, I can see newly closed questions, newly deleted questions, and questions with delete votes. What would be useful, though, is questions that have only recently become eligible for deletion. (Newly closed questions don't do the trick, because there is a waiting period).
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You can actually just go back a couple of days in the "recently closed" list and have a pretty good chance of finding questions eligible for deletion.
Keep mind though that not everything that gets closed should be deleted. Exercise particular restraint when dealing with questions closed as duplicates.