- Photo taken Locality: Greece, Epirus, Ioannina, Pamvotis lake
- Photo taken by: Trichas, A.
- Photo taken date: March 2013
Photo of the Black-headed Gull, Chroicocephalus ridibundus. Hundreds of thousands of Black-headed Gulls overwinter in Greece, in wetlands and farmland. They feed mainly on worms, insects and other invertebrates.