Learned IN 1867 in Brisbane (in Indooroopilly, inside of going for walks distance of my home), Rawnsley's bowerbird was shiny blue with golden wings, marking it out as exclusive. But it really fitted what you may perhaps get if a satin bowerbird obtained too chummy by using a regent bowerbird. The naturalist who named it, Sylvester Diggles, discounted this by citing a sighting from central Queensland.

There is certainly this unresolved ambiguity that exists concerning the purpose of…