Landscape traits can contribute to range limit equilibrium: habitat constraints refine potential range of an edge population of Black-headed Bunting Emberiza melanocephala

Capsule The potential range of Black-headed Bunting Emberiza melanocephala in Lombardy, northern Italy, is restricted to the small area actually occupied by a tiny and isolated population; distribution modelling suggests that both climatic and habitat features contribute to the observed correspondence between the potential and realized range.