For them to fly around, they need to keep up a high body temperature so can’t actually fly when they’re cold. What they do is rest and open their wings up to bask in the sun and then, when they’re warm enough, they are able to move forward.
Interestingly, butterflies taste using receptors on their feet. As they walk over the plant, the receptors tell them if it’s the right one. This is really important because they don’t have mouths! Instead, they have a long protruding tube which is a proboscis, which goes in the plant to drink the nectar.
Not only do you get the beauty of these creatures, but you get what they bring to your patch of paradise. Just like bees, butterflies are pollinators. When they visit a flower, they collect pollen on their bodies and carry it to other plants. This helps fruits, vegetables and flowers to reproduce.
Creating a butterfly garden or introducing plants in the garden with the purpose of attracting butterflies is a fantastic thing to do.