How might the male's plumage appear when observed in deep shade?
Answer
It might appear almost entirely black and gray
When a male is seen in deep shade, the perception of its colors changes, potentially intensifying the 'mourning' association as the dark tones become more dominant and the yellow less visible.

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What feature primarily gives the male Mourning Warbler its distinctive name?How does the female Mourning Warbler's throat and breast typically appear compared to the male's namesake hood?Despite its somber moniker, how is the Mourning Warbler's song usually described?Which habitat component do Mourning Warblers strongly prefer in their breeding grounds?Where do Mourning Warblers primarily forage for insects?What color provides a striking contrast to the male's dark upper parts?Why is confirming the Mourning Warbler's identity by sight often challenging for observers?What region primarily constitutes the wintering grounds for the Mourning Warbler?How might the male's plumage appear when observed in deep shade?Which area is included in the described North American breeding range of the Mourning Warbler?