lou salomon
the birdonist
one of hundreds over there...
i'm inclined towards a well advanced caspian gull. such contrasting individuals are not that rare. but they certainly don't look like the ones you like to approach as "typical caspian". in spring birds with such black and white transversal pattern are more common. they look totally different to birsd with little or no replaced coverts: compare these two 1st cycles cachs in march: http://lou.bertalan.de/gulls/m_phi.php?bid=389&grp=cachinnans 2cy january-june , left one a contrasting "zebra", right one with worn old coverts and tertials.
here we got a similarly advanced and bold pattern to the subject gull: http://lou.bertalan.de/gulls/m_phi.php?bid=627&grp=cachinnans 2cy january-june
and http://lou.bertalan.de/gulls/m_phi.php?bid=628&grp=cachinnans 2cy january-june
cheers
i'm inclined towards a well advanced caspian gull. such contrasting individuals are not that rare. but they certainly don't look like the ones you like to approach as "typical caspian". in spring birds with such black and white transversal pattern are more common. they look totally different to birsd with little or no replaced coverts: compare these two 1st cycles cachs in march: http://lou.bertalan.de/gulls/m_phi.php?bid=389&grp=cachinnans 2cy january-june , left one a contrasting "zebra", right one with worn old coverts and tertials.
here we got a similarly advanced and bold pattern to the subject gull: http://lou.bertalan.de/gulls/m_phi.php?bid=627&grp=cachinnans 2cy january-june
and http://lou.bertalan.de/gulls/m_phi.php?bid=628&grp=cachinnans 2cy january-june
cheers