Today I observed a male butterfly swirling round and round in our garden, sipping nectar from various flowers. After a while he flew to our banana plant and rested on a drying leaf stalk for a good 15 minutes, then up he flew round and round again.
If you watch the females, especially when they're laying, they spend quite a time laying eggs then rest on another plant for a while.
Of course these rest times are perfect for grabbing photo opportunities.