I "smelled" a Bream bed one time, many decades ago. An old timer buddy of mine told me that a bed smelled like overripe watermelon ... and that was the scent that I picked up. A light wind carried the smell down the bank quite a ways, but I did find the bed. First and last time I ever smelled a Bream bed, as far as I can remember ... but, I ain't been much into Bream fishing since those times, so I may have just ignored it.