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| Indiana. March. |
From what can be seen on the inner primaries and outer secondary feathers, it does not appear these flight feathers are adult-like (i.e., solid gray/black centers with broad white tips). However, p10 has an obvious mirror on what appears to be a large, white-bodied bird with narrow tailband and minimally marked undertail coverts. Based on these features, along with the thick bill, blocky head and broad wing, we can conclude this must be a 2nd cycle Great Black-backed Gull.