High lead levels found in southeast Missouri songbirds

Tuesday, June 25, 2013 | 7:17 p.m. CDT; updated 10:21 p.m. CDT, Tuesday, June 25, 2013

ST. LOUIS — About half of the ground-feeding songbirds collected from lead-mining regions of southeast Missouri had extremely high levels of lead in their blood, kidneys and liver, according to a survey released Tuesday by the U.S. Geological Survey.