That's part of the reason I have a no mow policy for my yard. Instead of cultivating a resource needy monoculture of grass I cultivate a variety of plants. This helps provide food and habitat for many beneficial birds, insects, and other creatures. Some of the plants I also eat like violets, dandelions, chicory, nettles, and garlic mustard. By not mowing you also save water since you may not have to water the plants.