Too few people recognize grazing land as destroyed. Very often it used to be bog, forest, grassland supporting many wild species (before the soil was pumped full of nitrates) etc. A big grassy field can be an ecological wasteland.
True - the land around me has tons of fertilizer applied to maximize grass production and is grazed or cut for hay and silage. It supports very few wildflower species though. Take hay cuts for a few years and you can restore it though.