In Pianeta 2030, a section of the Corriere della Sera dedicated to ecology and sustainability, an article by Maurizio Donelli focuses on research by the British Trust for Ornithology, according to which the sparrow population has declined by more than 70 per cent since 1971.
Among natural causes, such as the increasing presence of predators such as seagulls, jackdaws, magpies and crows, the causes linked to human activity are highlighted: particularly in cities, contemporary building has actually reduced ravines on roofs and gutters where these species used to nest.
Stefano Boeri was asked about this issue as the architect of the Bosco Verticale, considered an icon of a new architecture that aims to implement biodiversity in urban contexts:
“In our small city of Milan, in the two towers of the Bosco Verticale, which house more than 30 thousand plants and shrubs, a true laboratory of biodiversity has been created in which some twenty species of birds, including sparrows, have nested. A new relationship between nature and tenants has been established. We are confident that the same thing will happen in all the Vertical Forests we are planning around the world’.
To read the full article: https://www.corriere.it/pianeta2030/22_ottobre_02/strage-passeri-privati-cibo-ripari-ne-rimane-solo-terzo-popolazione-anni-70-9d50e052-4221-11ed-9fa0-c9e285f7122f.shtml