I have seen one bulldog that could do "personal protection" drills, catch a hog and "soft mouth" both upland style and water fowl retrieve...
She is from the same litter as my 2 sister catch dogs... american bulldog X pitbull... One of mine might be able to do this too but there ain't a chance in heck the other would bring it back let alone soft mouth.
She has 2 bites... If you think this'n hurts... you don't wanna see the next one
Brent