As an African, my first thought on seeing the pictures was that it’s a shame that the dead mice (that were caught in traps or by dogs) aren’t being used to make pet food or to feed zoo animals after cooking them thoroughly in large pots.
Evidently contemporary baits aren't Warfarin based - that was the active ingredient I recall when growing up - it acts as a blood thinner, and rodents would haemorrhage internally whenever they bumped into something. A fairly unpleasant death.
I'm not sure on the current commercial baits ingredients, but in any case, a good number of the rodents you're seeing in those photos will have been poisoned rather than trapped & drowned, so you definitely don't want your pets eating them.
Having said that, a neighbour told me recently his dog had eaten some baits -- it was a bit slow for a few days, and 'shat green for a week', but seemed to weather it okay.
People roast and eat wild rodents like rats as “bush meat” but to my knowledge they don’t eat mice. If we had a plague of mice we would certainly find a way to utilize them.
Separating the digestive system from all those little bodies would be tedious for not a whole lot of gain, a few tens of grams of muscle meat and organs per mouse.
On the TV show "Alive," people were occasionally trapping mice and eating them, and the show would show trivia like how many calories were in the food.
I think it was worth something like 30 calories for a mouse. Virtually nothing.
