What Happened To Everyone Who Joined The Birds Of Prey?
7. Penguin
Not all characters who join the Birds of Prey stick around for more than one story arc, or even more than one issue. Hence easily the strangest addition to the Birds of Prey; The Penguin.
During the events of the event comic Brightest Day, the Birds came across Penguin getting his ass thrashed by White Canary (who, in a complete 180 compared to Dinah, is nowhere near as interesting as her CW counterpart). When the Birds rescue him, he reveals that White Canary was looking for valuable information regarding the superhero community, offering his services in stopping her.
Of course, this is the Penguin, so no one trusts him, but White Canary is one of those threats where you stop bickering until she's gone, so they put up with him while they search for her. But of course, it turns out to be a ruse set up by the Penguin in consort with White Canary so they can both have the information.
Fortunately, Penguin is at least stopped, Huntress just barely stopping herself from killing him. But that doesn't mean she can't tie him up, gag him, put the fear of god into him, and leave the bastard in a back alley.