When comparing the four prominent blue tanager species examined, what is the general rule regarding sexual difference?

Answer

Blue tanagers are more often sexually similar than dimorphic.

Across the Blue-grey, Turquoise, Blue-necked, and Blue-and-Yellow Tanagers, the tendency leans toward the sexes appearing similar, ranging from complete likeness to subtle differences in color saturation.

When comparing the four prominent blue tanager species examined, what is the general rule regarding sexual difference?
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