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Lead shot poisoning of a Pacific loon in Alaska

January 1, 2004

Lead poisoning, associated with ingestion of spent lead shot, was diagnosed in an adult female Pacific loon (Gavia pacifica) observed with partial paralysis on 13 June 2002 and found dead on 16 June 2002 on Kigigak Island, Yukon Delta National Wildlife Refuge, western Alaska, USA. A necropsy revealed three pellets of ingested lead shot in the loona's gizzard and a lead liver concentration of 31 ppm wet weight, which was consistent with metallic lead poisoning. This is the first report of lead poisoning in a Pacific loon and is the only account of lead toxicosis associated with ingestion of lead shot in any loon species breeding in Alaska.

Citation Information

Publication Year 2004
Title Lead shot poisoning of a Pacific loon in Alaska
DOI 10.7589/0090-3558-40.3.600
Authors H.M. Wilson, J.L. Oyen, L. Sileo
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Wildlife Diseases
Index ID 1003798
Record Source USGS Publications Warehouse
USGS Organization National Wildlife Health Center