The Constant Effort Sites scheme

Author(s): Peach, W.

Editors(s): Stroud, D.A. & Carter, S.

Published: January 1991

Publisher: BTO/JNCC

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.

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Biodiversity loss and the UK’s birds

Biodiversity loss is one of the biggest drivers of bird population declines in the UK. Learn what we’re doing to tackle this threat to nature and how you can support our work.

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

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The Constant Effort Sites scheme

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