Mandarin duck
Not a huge amount of effort goes into self preening For most men getting up in the morning, or getting ready for a big night out – because surely their fantastic personalities will win any female over!
But for the male bird, what you see is what you get. Attraction is a huge driving force when it comes to plumage, so it makes sense that many male birds looks spectacular.
On the other hand the females look rather duller. The reason for this apparent gender favoritism is a logical one, however – to ensure that they are more camouflaged from potential predators.