Butterfly in flight

I thought that this would be butterfly day but I could only find white ones (Large White, I think). One of them was fluttering about, slowly, just a few inches above the ground, so I was able to get a few shots. I think this is a male. It is interesting to see how much the wings bend as they flap. A few moments earlier, it was with a female (first extra) and a few moments later, it settled on a leaf (second extra).