My favorite Leprechaun i've caught is this one, it was in a lovely and ancient wood, comprised of semi natural oak and ash and managed as coppices for many centuries. A great place for Leprechaun hunting. I think he's carrying a goat kid or animal.
[Linked Image from farm3.static.flickr.com]
[Linked Image from farm3.static.flickr.com]
The original is this one below
[Linked Image from farm3.static.flickr.com]