Mediterranean or Black-headed Gulls - Sennen Cove

Mediterranean or Black-headed Gulls - Sennen Cove

Observation - Mediterranean or Black-headed Gulls - Sennen Cove - UK and Ireland. Description: First thought these were Med Gulls, but on closer inspection of photos think they may be Black-headed - not sure which

First thought these were Med Gulls, but on closer inspection of photos think they may be Black-headed - not sure which