A close-up of this Antarctic shag highlights its characteristic blue and the yellow/orange growth above its beak that is brightest during the breeding season, presumably to attract mates.

Image ID: fish8908, NOAA's Fisheries Collection
Location: Antarctica, Cape Shirreff, Livingston Island
Photographer: Ray Buchheit
Credit: NOAA NMFS SWFSC Antarctic Marine Living Resources (AMLR) Program

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