Data on long term trends in Polybrominated diphenyl ethers (PBDEs) in sparrowhawk (Accipiter nisus) eggs. Samples were selected from the Predatory Bird Monitoring Scheme (PBMS) Archive. Failed or abandoned sparrowhawk eggs were taken from nests by licensed egg collectors and archived as part of the monitoring activities of the PBMS in the UK. The period studied was 1985 to 2007. Data are presented in three tables including detected PBDEs, interpolated PBDEs and sample properties which are described in a metadata file. The Predatory Bird Monitoring Scheme (PBMS) is a long-term, national monitoring scheme that quantifies the concentrations of contaminants in the livers and eggs of selected species of predatory and fish-eating birds in Britain.