Man I've caught tons of bass in ponds where there isn't any crawfish on crawfish imitating lures. Depending on the cover you have in the pond is how you should fish lures like jigs and soft plastics that would indicate crawfish or anything else. I believe the bass bite it due to territory, predatory nature, and even curiosity. Very little cover would indicate to me to fish fast and look for a reaction bite. Burning a jig with a trailer that has a lot of action has proved to be absolutely fantastic on some days. Fish could be anywhere in a pond with little cover, but they'll probably be on the banks most of the time or suspended somewhere off the bank, and believe me they will chase down a fast moving lure in both scenarios. Heck most of the jigs I've burned to catch some true pond monsters have been crawfish patterned with chigger craws or rage craws as trailers. Thicker cover like lilly pads, grass, willow trees etc. would indicate some texas rigged soft plastics or everyone's favorite, TOPWATER. Snag Proof Ish's Phat Frog is my absolute favorite. In regards to frogs being a food source in your pond, I would say probably not at the top of the bass' list. I believe they don't necessarily want to bite a frog imitating bait because it looks like a frog but because of the action it imparts, regardless of whether it's topwater or subsurface. I've been fishing this pond for the past few summers to test out new equipment, lures, etc. and the same frogs sit in the same place every time I go down there. If bass loved frog's so much, there wouldn't be hardly any in ponds in my opinion. Any way you want to look at it, I believe a bass's predatory nature, territorial instincts, and curiosity, are the main reasons they would bite any artificial lure in the first place. So experiment around and even match the hatch sometimes, but I've seen days where a hot pink creature bait will fish a bluegill patterned paddle tail into the ground. So chew on that lol. Good Luck!