This is a very rare visitor on these shores. We´ve been lucky to have one couple nesting by a river close to where I live. I got up at 6am this morning and headed out, with a couple of "lunatic" comments from my wife. 0C/32F and a cold breeze made it a chilling experience. The bird appeared a number of times and I have lots of shots. Finally it decided to sit down in the sun and I could get my ISO sufficiently down to benefit from the 5DSR resolution. It lives on the other side of the river, where access is impossible, so a lot of cropping was required.
5DSR, 600mm f4L IS II + 2xIII extender. 1/400s, f/9.0, ISO200
Great shot of the female Kingfisher, Eldar!
If you're lucky they'll nest at least one more time and you could get great shots of the young ones as they start to dart around. I'm guessing the riverside on the other side consists of light clay and sand and that's why they've decided to dig out their nest there.
I haven't looked yet in the BIF-section, but any luck getting BIF shots with that lens+extender combination? With their speed and typical flight behaviour I can imagine that is a bit of a nightmare...