Skip to main content
Search
Main navigation
What we do
About
Our Mission
History
Staff and Trustees
Funding
People's Postcode Lottery
The National Lottery Heritage Fund
Fundraising promise
Our commitment to Equality, Diversity and Inclusion (EDI)
News and publications
News
Blogs
Publications
E-newsletter
Projects
Catch My Drift
Flexigraze
Eco Influencers' Scheme
Kielder Ospreys
Living Landscapes
Kielder Living Landscape
Druridge Bay Living Landscape
City to Coast Living Landscape
Living Seas
Local Sites
Naturally Native
Nextdoor Nature
North East Community Forest
Northumberland Peat Partnership
Northumbrian Water Environmental Partnership
Red Squirrels Northern England (RSNE)
Red Squirrel Recovery Network (RSRN)
Restoring Ratty
Stronger Shores
The Missing Lynx Project
Wilder Northumberland Network
Wilding West Chevington
Professional Services
Biodiversity Net Gain
EcoNorth
Get involved
Nature reserves
Visitor centres
Hauxley Wildlife Discovery Centre
Northumberlandia
Volunteer
Wildlife work days
Work experience and student placements
Young People's Forum
Events and activities
Events
30 Days Wild
Big Wild Walk
County rock and fossil for Northumberland
Education
Your community
Local groups
#TeamWilder map
Young People's Forum
Campaigns
12 Days Wild
Defend Nature
Give our seas better protection - HPMAs
30 Days Wild
Action for Insects
Wilder Future
My Wild Life
Marine Conservation Zones
Support us
Membership
Donate
Appeals
The Big Give Green Match Fund 2024
Whittle Dene Appeal
Wilder Ways to Wellbeing
30 by 30
Giving tree
Adopt an animal
Adopt a hedgehog
Adopt an owl
Adopt a red squirrel
Leave a legacy
Corporate support
Fundraise for us
Great North Run
Other ways to help
Give as you Live
Shop
Gift membership
Wildlife
Wildlife A-Z
Habitats A-Z
Actions for wildlife
Wildlife advice
Planning
Wildlife and the law
Frequently asked questions
Questions about wildlife
Questions about the Trust
Questions about Trust reserves
How to identify
How to identify owls
Identify birds of prey
How to identify swifts, swallows, sand martins and house martins
Identify garden birds
Identify UK woodpeckers
How to identify bumblebees
Identify British butterflies
Identify moths
Identify caterpillars
Identify UK snakes
Record a sighting
Join us
50 Years
Rock Festival
Auxiliary menu
News
Events
Jobs
Shop
Nature Counts
Contact us
Follow us
Facebook
Twitter
Instagram
LinkedIn
Youtube
You are here:
Home
Events
Introduction to clean air-indicating lichens
Introduction to clean air-indicating lichens
Share
facebook
twitter
email
whatsapp
Sorry!
We’re sorry this event’s now passed! There’s more coming up though,
view more events here.
Please ensure Javascript is enabled for purposes of
website accessibility
