How is the breeding male Whinchat's head distinctly patterned?
Answer
A black face contrasted by a bright, clean white supercilium
The breeding male Whinchat exhibits a highly noticeable pattern on its head, which serves as a key visual identifier. This pattern consists of a distinctly black coloration covering the face area. This darkness is sharply offset by a prominent, bright white stripe situated just above the eye, which is technically referred to as the supercilium. This sharp contrast gives the male an alert and defined facial appearance during the breeding season, distinguishing it clearly from the female.
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