Aside from seeing a bird cage, it’s hard to tell what critters are being sold in this shop, but hyenas would certainly qualify as “exotic” animals.
Birds of Prey has officially begun principal photography, and a leaked behind-the-scenes photo, shared by Harley Quinn Updates, shows Margot Robbie (wearing a different costume than the one in the preview video released at the beginning of the week) inside a store called Murray’s Exotic Animals.
Of course, then there’s the question of how hyenas can be legally sold, but I’m assuming Murray’s Exotic Animals is located in Gotham City, where folks can get away with a lot of illegal activities that would swiftly be dealt with in other DC cities.