Disheveled Kookaburra

While I was wandering through the zoo I noticed a kookaburra sitting on top of a sign. This was a bird passing through, although he or she was not in a hurry to move, even though being harassed by a smaller bird (I think the smaller bird was protecting a nest, and was bothered by the presence of a kookaburra, because kookaburras are predators).

This was shot on a Sony A1 with the Sony 135mm GM wide open at f/1.8, 1/2000, ISO 125. The shot was cropped heavily, but is still sharp.