Ephydra cinerea, Ephydra hians
Title: One California Gull actively feeding, the other is passively feeding
Location: Antelope Island State Park, Davis County, Utah
Date: 8/29/2011
Title: California Gull in a thick cloud of brine flies
Location: Antelope Island State Park, Davis County, Utah
Date: 8/29/2011
Title: California Gull chasing brine flies with its bill open
Location: Antelope Island State Park, Davis County, Utah
Date: 8/29/2011
Title: California Gull chasing Brine Flies along the causeway
Location: Antelope Island State Park, Davis County, Utah
Date: 8/2/2009