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Taking biometric measurements

Further information about methods for taking biometrics measurements can be found in Chapter 11 of the Ringers' Manual.

BTO Data Reports

Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK.

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BirdTrack migration blog – early spring

It may still feel like winter but for some species, the increasing temperatures and lengthening days have already kick-started spring migration, with birds starting to arrive and depart across Britain and Ireland.

Tagged Lesser Black-backed Gull. Gary Clewley

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Bird tracking

Phil Atkinson explains the technology behind tracking.

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Project partners

Project partners

Taking biometric measurements

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BTO Data Reports

BirdTrack migration blog – early spring

Bird tracking