RELATIVE OCCURRENCE OF FORAGE FISH SPECIES IN BLACK-LEGGED KITTIWAKE DIETS AT MIDDLETON ISLAND FROM 1978 – 2015. NOTE THE HIGH PROPORTION OF CAPELIN (LIGHT BLUE) IN 2012-2013 (AND EARLIER YEARS) COMPARED TO 2014-2015 WHEN OCEAN WATERS WERE WARMER. (LONG-TERM DATA COURTESY OF SCOTT HATCH, INSTITUTE FOR SEABIRD RESEARCH AND CONSERVATION.)