Hello, pork belly and pigeon (squab) can make soup together, there is no food incompatibility. Thank you!
Foods that can not be eaten with pork belly
Pork belly == rhododendron: triggers abdominal pain
Pork belly == lotus seed: easy to be poisoned
Pork belly == Aloe vera: it will cause diarrhea
Pork belly == prunes: it will cause poisoning