Looking for thoughts on this gull with what appears to be a Slaty-backed/Cook Inlet (hybrid Glaucous-winged x Herring) upper wing pattern. Rest of plumage doesn't really fit typical hybrid and might fit a Slaty-backed (contrasting frosty coverts with outer greaters more plain/bleached than inners and dark tertials and primaries), so wondering if this could be a Slaty-backed? Thanks in advance.
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Input on a Gull ID, Southern California (1 Viewer)
- Thread starter labirders
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