Table 1. Hepatic Pb levels (mg/kg, wet weight, range) and the assesments of Pb exposure in birds from Hokkaido.

Species	Sample size	Pb concentration in liver	Assessments
		mg/kg, wet wt, median, (range)	Pb poisoning (>2.0 mg.kg)	High Pb exposure (0.2–2.0 mg/kg)	Non toxic (<0.2 mg/kg)
White-tailed sea eagle	51	0.068 (0.003–50.79)	3	2	46
Steller’s sea eagle	34	0.082 (0.003–72.01)	9	3	22
Blakiston’s fish-owl	7	0.036 (0.001–0.070)	0	0	7
Mountain hawk-eagle	3	0.095 (0.023–0.120)	0	0	3
Northern goshawk	3	0.025 (0.007–0.136)	0	0	3
Eurasian Hobby	2	(0.092, 0.278)	0	1	1
Jungle crow	2	(0.063, 0.107)	0	0	2
Peregrine falcon	1	0.093	0	0	1
Sparrow hawk	1	0.065	0	0	1
Ural owl	1	0.137	0	0	1
Whooper swan	1	19.56	1	0	0