Here's a couple of things you may not see too often.
First is a Marbled White Butterfly. If you live here in the south east then you probably do see quite a lot of them, but the further away you get the rarer they are. Supposedly.
And secondly is this - a juvenile Green Woodpecker. I was just taking a rest and I saw this odd patterned thing swoop across the field and then perch atop a tree. Everything about its flight pattern said Woodpecker, but the pattern (it came head on, so all I saw was the speckled breast) was something else. Was it some kind of thrush, I thought? But no, the size, shape of the body, and the beak cancelled that out. So I got my camera out and zoomed in for a closer look. Still didn't recognise it. I kept thinking 'woodpecker' but it just didn't look like any woodpecker I'd seen. So I checked my reference books when I got home and lo and behold - a juvenile green woodpecker...