What characteristic often results in females of brightly colored tanager species appearing much duller than breeding males?

Answer

Sexual dichromatism, likely providing better camouflage while incubating the nest

The widespread sexual dimorphism in plumage, where females exhibit duller shades of yellow, olive, or green, serves an ecological purpose, likely providing better camouflage and reducing predation risk on the nest site.

What characteristic often results in females of brightly colored tanager species appearing much duller than breeding males?
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