Which animals do bait hunting? By bait hunting I mean some predator which first collects or finds some bait (food of its prey) and then uses the bait to lure and catch its prey. This question is inspired by this video showing an orca using a small fish to catch a bird. To me this looks like it requires an amazing amount of intelligence from the orca to pull off. Note that the orca in the video is in captivity so I don't know whether this is something that wild orcas can do or whether this is a human trained behavior. More generally, is this something that some smart predators can do?

Well, _Crocodylus palustris_ do this using sticks that birds want for nesting.


Behind a paywall is:

Crocodilians use tools for hunting.

V. Dinets, J.C. Brueggen & J.D. Brueggen Published online: 29 Nov 2013 <

It is also known that _Crocodylus porosus_ caches uneaten food; and unproven suspicions that they use the cached food to bait-hunt aquatic animals.