I'll bet it could have been a combination of things.. maybe the warmouth got mixed in the the bluegill stock at the fishery. Possibly the LMB too? I would think a bullhead could withstand being out of the water long enough for a bird to transport it... I guess we will never know for sure but it's interesting and confusing. If by the crazy chance a trespasser did it, then they sure were sneaky and it was a darn good trick.