This packet contains the standardized veterinary (necropsy) used in the assessment of the population scale impacts of lead toxicosis in bald eagles in the Northeast United States from 1990-2018. The data is featured in the article entitled Environmental Lead Reduces the Resilience of Bald Eagle Populations, by B. Hanley, A. Dhondt, M. Forzán, E. Bunting, M. Pokras, K. Hynes, E. Domingues-Villegas, and K. Schuler. While this dataset contains only cleaned and standardized data used directly in the analysis, all data were originally sourced in raw (unstandardized) form from regional state and federal agencies, diagnostic laboratories, and other organizations.