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.

Online surveys

Access your surveys via your My BTO page.

FAQs about online surveys

Tools and information

Develop your skills with our articles on survey skills.

How to read grid references
Species codes

Species codes (PDF, 107.70 KB)
Health and safety information
Birdwatcher's Code

Birdwatcher's Code (PDF, 167.20 KB)

Bird tracking — a masterclass

Phil Atkinson explains the technology behind tracking.

Blackbird & pulli, photograph by Jill Pakenham

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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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Information for surveyors

Contact your regional organiser

Online surveys

Tools and information

Species codes

Birdwatcher's Code

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Bird tracking — a masterclass

Too wet to nest?

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