Information for surveyors
Already taking part in a BTO survey? This page contains links to information that may help you with your surveying.
Contact your regional organiser
Find the contact details for the regional network organiser in your area.
Access your surveys via your My BTO page.
Tools and information
Develop your skills with our articles on survey skills.
- How to read grid references
Species codesSpecies codes (PDF, 107.70 KB)
- Health and safety information
Birdwatcher's CodeBirdwatcher's Code (PDF, 167.20 KB)
Science - Latest research
Too wet to nest?
A common issue that many analysts of biological data encounter is that of detectability. For a human population we can (in principle) count every individual. For wildlife though, things are trickier, and only rarely is...
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