Daisy?

Many thanks to Naturelover who identified yesterday's flower blip. Here's another one where I need some help. It has just started flowering and has long green-grey leaves. The flower head turns into a feathery fist of seeds in the autumn. Any ideas?

Just received a box of ammunition against slugs from Chase Organics. Several of the marigold seedlings I planted out yesterday have been eaten by slugs. So now I've no excuse to sit back and watch them munch their way through the garden.