The marsh warbler is a remarkable migratory songbird that mimics dozens of African species and faces welfare threats from habitat loss at both ends of its migration route.
Declining breeding habitat from drainage of wet meadows and riparian vegetation removal reduces available nest sites. Degradation of East African wintering grounds from agricultural expansion threatens survival. The long migration exposes birds to hunting pressure across the Mediterranean. Climate change is altering the phenology of breeding habitat vegetation relative to the birds' arrival timing.