These are the Pokemon nests in Wigan where we have a report of at least one Shellder They may have been one offs and there is no guarantee that another Shellder will appear there

Standishgate

 Bottling Wood2 sightings

Caunce Road

 Scholes1 sightings

Everest Place

 Bottling Wood1 sightings

42B

 Wallgate1 sightings

Darlington Street East

 Scholes1 sightings

Holme Terrace

 Marylebone1 sightings