Table 1.

Metal levels (ppb, ng/g dry weight) of feathers of adult birds collected from Adak, Amchitka, and Kiska in the Aleutian Islands, Alaska

Common name	Common eider	Tufted puffin	Pigeon guillemot	Glaucous-winged gull	Bald eaglea	X 2(p)
n	26	39	38	63	23
Feather type	Breast	Breast	Breast	Breast	Wing
Arsenic	138± 18.0	136±25.6	157±25.8	144±26.7	547±75.8	38.7 (<0.0001)
	107	15.0	44.5	15.7	425
	(B)	(C)	(B,C)	(C)	(A)
Cadmium	79.8±3.96	80.3±12.9	31.0±6.02	77.3±12.1	253±39.6	58.0 (<0.0001)
	77.0	49.1	5.14	50.5	127
	(A)	(A)	(B)	(A)	(A)
Chromium	172±49.9	1,820±230	1,670±402	829 ±190	2,170±193	91.5 (<0.0001)
	34.6	1,450	912	383	2,000
	(D)	(A,B)	(B)	(C)	(A)
Lead	993 ±132	1,260±339	1,280±274	855±133	4570±799	42.3 (<0.0001)
	828	104	785	444	3,350
	(B)	(C)	(B)	(B)	(A)
Manganese	1,870±267	622±58.1	1,060±90	1,430±255	34,300±5,550	80.7 (<0.0001)
	1,460	531	919	766	27,200
	(B)	(D)	(B,C)	(C,D)	(A)
Mercury	840±81.5	2,540±195	7110±657	3,680±374	4,910±772	69.5 (<0.0001)
	715	2,120	5,860	2,370	3,940
	(C)	(B)	(A)	(B)	(A)
Selenium	878±88.3	6,600±344	3,350±259	996±53.5	2,550±268	139 (<0.0001)
	731	6,110	2,990	848	2,320
	(C)	(A)	(B)	(C)	(B)

Given are arithmetic means±SE (geometric means below) with Duncan values in parenthesis

^aOnly Eagle were wing feathers