The scientists looked at how organic vs. regular farming affects endangered birds and butterflies in Saxony, Germany. They used a special computer model to do this. They found that both farming types don't help much to save these species. This is because the animals need different land uses at specific times for breeding, and neither type gives this variety. Also, organic farmers have different costs and payments for conservation measures compared to regular farmers. This affects their choices to help with protecting biodiversity. To help these species more, the payment system for conservation measures might need changes, especially for organic farming.