probably be best to find out what sort of grub they are..but with all wild caught insects, there is always the risk of parasites, pesticides etc which can be passed on to your bearded dragons. Even low levels of toxins in the grubs can build up in your dragon till it reaches toxic levels.

Also, no real way to know the food quality of the grubs, not all insect larvae may have good nutritional balance for bearded dragons and other reptiles. If these grubs have been eating/feasting on rabbit poop...no idea on the quality of food they are getting either...I expect the grubs are more likely eating on the undigested plant matter your rabbits eat...but contaminants and bacterial/parasites can easily be on or in the grubs too.

Rinsing the grubs off with water may not remove harmful bacteria/parasites either which may be in the poop. These could also be dangerous to you.. such as say...salmonella or e-coli. Best to stick with farmed grubs that are grown on organic matter that isn't feces.
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PHLdyPayne

Forum Princess