We have more mammoths than dodos

It makes sense when you think of population size and location (lots of mammoths stuck in permafrost, not so many dodos on a tropical island) but it still feels weird that we have more preserved remains* of something that (largely) died out over 10,000 years ago than we do of something that died out <400 years ago. I guess there are plenty of things that have died out in my lifetime that we have few samples of. * As in preserved soft tissues rather than skeletons