Why are Australian swans black?

Australian swans are black, while most swans are white. Why should this be? When I was a child, growing up in Australia, the only swans I saw were black. At Lake Wendouree in Ballarat, or in the Botanic Gardens of … Read More

Why is the ibis often grubby, and the egret always clean?

Lifestyle choices or better beauty products? The Australian white ibis often looks grubby, but the white plumage of egrets always looks freshly laundered – with a purity and glow that the makers of clothes detergents would die for. Both birds … Read More