The wings and upper tail are virtually black with a greenish-blue gloss.

The upper tail becomes yellow when the bird is breeding.

The white on the upper tail coverts is difficult to see in the field.

It has yellow thighs and green upper tail.

Lower back, rump and upper tail are bright emerald green.

Then, the fish's entire upper tail broke the surface, waving like a flag signaling victory.

There is a line of white spots across the outer end of the upper tail.

The upper tail is white and the lower abdomen is red.

Economists therefore sometimes state that the Pareto law as stated here applies only to the upper tail of the distribution.

Slowly, the door began to rise into the upper tail.