Place: Genovesa, Galapagos
Date: 17 August 2010.
[Larus furcatus, Family Laridae, Order Charadriiformes, Wikipedia Entry: Swallow-tailed gull]
The sound of the swallow-tailed gull (borrowed from the Xeno-Canto website, recordist Alvaro Jaramillo)
Marnix's Bird Gallery 