Gryllus campestris has long been considered the most endangered cricket species in the British Isles, occurring only in southern England.

[2] It is declining and red-listed in large parts of Central and Northern Europe, such as the United Kingdom, Germany, the Netherlands, Belgium, Luxembourg, and Lithuania.

It has declined severely in part of its northern range due to the disappearance of its heathland habitat; by the early 1990s, the species was reduced in the UK to a single surviving colony of just 100 individuals in Coates, West Sussex, and it is considered extirpated from Denmark.

Fragmentation of habitats and loss of (sub)populations have been recognized as main threats for many species, including the Field cricket.

The aim of translocation projects is usually to reduce the risk of extinction for an endangered species by creating additional self-sustaining populations.