Despite the fact that he's pretty sure birds don't understand the intricacies of facial langugae, due to the fact that their faces don't move much at all, Joker still gives a saucy little wink up at the bird. Hey, the berries are in the water and are thus free game! It's all fair and square.

By the time the bird shoves his face back into the water, Joker has just about picked the berries off completely to put into his net. Well, the mouth of a fish in his net, but it's fine. The fish is dead. It's as good as carrying space anyway. Feeling the splash again, he glances up in interest. Oh, more fruit... But this time the bird is holding them in his beak, as if to tease him. Rude!

Still, he starts to idly circle around up the line, gauging if those fruits move at all.