NONBREEDING BLACK-HEADED GULL, TAGUS ESTUARY,LISBON,PORTUGAL, 9/29/2019

   We can ID this gull as a nonbreeding Black-headed Gull as follows:

• Dark cheek spot on white head
• Reddish legs
• Silvery-grey above
• White underparts

   The Black-headed Gull is a new species to our Photographic Life List, which now stands at 922.