The most obvious difference between the two is in the wing feathers.

The wing feathers of Confuciusornis were long and modern in appearance.

They, like the wing feathers, may also be used for a variety of ceremonial or religious purposes.

By the end of the third week, wing feathers start to develop.

Their plumage is pure white, except for some wing feathers, which are black.

There are white spots on the red body and wing feathers.

It is mainly green and some of the wing feathers are brown/bronze.

The ravens' wing feathers are kept short so they cannot fly away.

The wing feathers are dark brown with a narrow outer fringe of blue.

Her wing feathers are only about an inch long.