Tree swallow (Tachycineta bicolor) demographics and metal(loid) concentrations in egg contents from the Kootenai River basin, Montana nest box colonies - Balmer, Brian; Skorupa, Joseph P.; Adams, Katherine B.; Creel, Bridger M.; Hoffman, Gregory; Fylling, Megan A.; Le, Stephanie; Martin, Jacob M.; McBride, W.; Williams, Jacob T.; Schmidt, Travis S. (Environmental Monitoring and Assessment, 2025)