Alas, we don't have kookaburras. That critter is the beautiful, but evil, kingfisher that haunts my pond. I actually got a photo of him (or her) snagging one of the smaller shubunkins that were born in the pond. The photo was too blurry to see much, but it was clear the fish was a shubunkin.
I also got a photo yesterday of a cuckoo bird importuning its adopted (or should I say hoodwinked) parents for food. The parents were hooded crows, and the cuckoo was pretty much full grown. Pretty bird, but sneaky.