The supraloral line or supraloral feathers of a bird:
A stripe that is present only above the lores (the region between the eye and bill on the side of a bird's head) and does not continue behind the eye. Please refer to below photo (yellow line above across the lores and across the eye) - unlike the supercilium (for comparison purposes, please refer for the photo of the Whinchat at the bottom which has a prominent white supercilium).
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