The use of annual ringing and nest record card totals as indicators of population levels

Author(s): Ginn, H.B.

Published: January 1969

Journal: Bird Study Volume: 16

Digital Identifier No. (DOI): 10.1080/00063656909476245

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.

Article

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.

Case Study

BTO Data Reports

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

The use of annual ringing and nest record card totals as indicators of population levels

Share this page

Related content

BirdTrack migration blog – early spring

Biodiversity loss and the UK’s birds

BTO Data Reports