Ferrybridge power station. View of electricity pylons and chimneys - Andy Hay (
rspb-images.com, Ref: 8230000_00123_009)
Rainham Marshes visitor centre - (RSPB)
Recycling bin - Andy Hay (
rspb-images.com, Ref: 9001997-01673-009)
Windmill and solar panels at the Centre for Alternative Technology - Andy Hay (
rspb-images.com, Ref: 9001997-01684-009)
Dripping tap - Chris Gomersall (
rspb-images.com)
View towards snowy hills at the RSPB Insh Marshes nature reserve - Andy Hay (
rspb-images.com, Ref: 9001997_01017_009)
Children riding mountain bikes - Andy Hay (
rspb-images.com, Ref: 8840700_00021_009)
Recycling bin - Andy Hay (
rspb-images.com, Ref: 9001997-01673-009)
Solar panel being fitted to RSPB visitor centre - Andy Hay (
rspb-images.com)
Bird illustrations by Mike Langman (RSPB)