My SMB pond always has a bumper crop of Bullfrog tadpoles. My LMB pond never has any to be seen. The two ponds are about 75 yards apart.
Based on Bill's comment and your comment - we can conclude that SMB have a much more sophisticated palate than LMB!
Or - LMB will essentially eat anything in the pond that moves.
It may be that a bullfrog can more easily outgrow the gape of a SMB than that of a LMB. All it takes is a couple large she-bulls to heavily populate a pond. I had horrendous amounts of bull tads for a few years in my pond. I have nothing against them until you can walk across the pond on their backs. Two seasons ago I culled 6 big frogs and few puny ones. The top 6 were large enough to make a big dinner for two, and the amount of tad poles dropped off greatly by the following year...like 100 to 1, maybe more!...there were tons of them. I once threw a 7 foot net for 45 minutes of the end of the dock and was able to transfer 400 of them to the creek. I'm not sure where they go after turning into frogs, but cutting the number of eggs that get laid drastically cuts down the numbers of tads.
As far as taste goes...a friend deep fried a tale once and said it resembled a pork rind. I don't care for rinds, I passed...lol