What is the defining iris color of a mature White-eyed Vireo?
Answer
Brilliant, stark white
The adult White-eyed Vireo is instantly recognizable by its iris, which is described as a brilliant, stark white. This feature creates a distinct, almost ghost-like stare against the surrounding dark feathers. This coloration provides a key difference when separating it from many other vireo species which typically exhibit brown or gray irises. The purity of this white is a marker of full maturity, as younger birds possess eyes that are not fully developed in color.
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