More mobs

There are a lot of mobs that I think would make Minecraft far more immersive. Here are some ideas: bobcat, Squirrel, Birds, and raccoons for the forests, (Also, rabbits should spawn in forest biomes) mountain lions, and eagles for the mountains, Crows, Elk, Moose, Mice, and Bears should spawn in forests and grasslands, Plains, sunflower plains etc. Beavers should spawn in lakes with the new beaver lodge and beaver dam, Snakes and bugs should spawn in deserts, swamps, mangroves, and jungles, also mosquito bushes that spawn mosquitoes that deal 0.01 damage so they're more of a nuisance than a threat, variants of the snakes depending on the biome they spawn in, constrictor for jungles, venomous for deserts and swamps, etc. different kinds of sharks, more kinds of squid and deeper, more realistic oceans, also, just for fun, add flounder. And, add lots more kinds of birds. they can be a mob or a particle that just spawns randomly over their matching biomes. Snow leopards in snowy biomes, normal leopards in jungle biomes, and finally, deer. Tons of different kinds of deer. Make them more common than sheep. These are my suggestions, I hope that this isn't too much to do, thank you for reading, have a nice day.