Well, there were crested guineafowl in WoB when I visited five years ago, but in a zoo like Bronx, lots of stuff can change in five years. This photo is from two years ago - I don't know when you last visited?
The guineafowl are still in the enclosure @Hvedekorn mentions, though the bee-eater are no longer at the zoo. There is a Bruce's Green-Pigeon there now, though.