Totally unexpected !!

I was hoping to get some plane pics this weekend but as I was doing a lawn repair today I heard a very slow revving engine and thought it might be a Harley going past BUT THEN....... I noticed a very slow plane in the sky. It might be a Storch from the second world war era as I have seen one fly before and this looks to be gangly like it was and the sound was very similar if memory serves me right.