Probable hybrid Glaucous X Great Black-backed Gull (1st cycle) - Whiting Refinery Beach, Lake County, Indiana - February, 2016

This beautiful bird was first spotted on the beach with Great Black-backed Gulls. It looked quite similar to the "Great Black-backed X Glaucous Gull hybrid" on page 295 of Howell and Dunn's "Gulls of the Americas." Great Black-backed and Glaucous couldn't be more different in plumage, but a mix of these two extremes sure makes for a stunning bird.

These photos were taken with a Canon 60D Digital Camera with a 100-400mm zoom lens.

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GLGU X GBBG hybrid

GLGU X GBBG hybrid

GLGU X GBBG hybrid