Besides the habit loss for the grassland birds, which lost over 50% of their population, I wonder how much of this is due to pesticides killing off their primar

Besides the habit loss for the grassland birds, which lost over 50% of their population, I wonder how much of this is due to pesticides killing off their primary food source. If you get rid of pesticides, you need more farmland to produce food to feed everyone to account for the loss to pests, which destroys more habitat...