lørdag 12. juni 2010
2nd winter Caspian gull, Mandal 19.3 2010
This nice 3cy caspian gull was discovered in Mandal harbour on march 19th by Thomas Bentsen. It's a rather classic individual with the typical, lanky caspian build, pure white head (streaking restricted to lower neck), small beady eyes, a solid tailband, predominantly white underwings and a mirror on P10. It is typically a more contrasting bird than a herring at the same age. Many caspians are more advanced in their covert-moult than this bird, but it is still far more advanced than the local 3cy herring gulls at this time - being comparable with 4cy herrings, in fact.