Although partly functional, weather vanes are generally decorative, often featuring the traditional cockerel design with letters indicating the points of the compass.
Depending on the parent rooster, cockerels from the mix may be predominantly white, with brown flecks, and surprisingly stocky when compared to the light-bodied hens.
A cockerel seeking food finds instead a precious gemstone, recognises the worth it has for others, but rejects it as being of no practical use to himself.