Headache?

I took a trip around my local fishing lakes to see how the land was lying. I am being pressured by a friend to do a couple of days / nights fishing soon. The water levels are extremely high and several trees have blown down. Everywhere is mud and more mud so me being a bit of a fair weather merchant is thinking mmmmm. I did see one guy land a 28lb mirror carp while I looked on so this gave me a slight bit of inspiration.

Having struggled to find something worth blipping all day I chanced upon some swans feeding in crystal clear water. this shot makes me wonder why they don't get severe headaches with having to feed id bitterly cold water.