The American wood warblers are similar in in size, shape and habits to the old world warblers, to which they are not at all related, though they are generally rather more colourful, particularly the ...

Frigatebirds are highly maneuverable aerial predators of tropical waters. The five species all breed in large colonies in trees on tropical islands. During courtship the males (which are mostly black) ...

BTO Research Reports are scientific papers that have been self-published by the BTO. The following is a full list of the published BTO research reports. Most are free to download, and links to ...

‘Biodiversity’ describes the variety of life in an area. It can be measured in areas as small as a back garden and as big as the entire Earth, and encompasses everything from genetic diversity and ...

This small family of waders is charcterised by slender bodies and long wings; the pratincoles also have very short legs. They are charcteristic of open semi-desert habitat in Africa, Asia and ...

Spend any time watching your gardens birds and you'll soon discover a host of different behaviours. It might be a Blackbird preening its feathers, a group of Starlings whirling about the sky in a ...

Species in the table that are marked with an asterisk are ones for which we particularly wish to encourage more monitoring because although they are common we receive relatively few records for them.

We recognise the growing popularity of auto-ID tools that use audio or image inputs to provide species identification, but we currently ask volunteers not to solely rely on these tools when submitting ...

How beautifully Burns uses the cuckoo to conjure up the image of spring in Scotland. You’ll also find plenty of references to ‘gowks’, the old word for ‘Cuckoo’ or ‘fool’ in the poems of Burns and ...

‘Upland’ habitats cover around 50% of Scotland, and most areas have been substantially altered by humans over time, for example by deforestation, reafforestation, grazing, drainage, or burning (read ...

Is predator control essential? Our research investigates. Moorland within Britain can support important populations of breeding waders, gamebirds, and birds of prey, underlining their conservation ...

Give some of your spare time to helping us to look after and improve the reserve and join one of our two work parties each month. No skills required - just reasonable fitness and bags of enthusiasm - ...