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 ...

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) ...

The vireos are a group of migratory warbler-like birds of the Americas. Birds of the tree canopy, they have relatively dull plumage, a robust build and heavy bills. Although they feed largely on ...

As the name suggests, the three species of Tropicbird are usually to be found wandering the tropical oceans. They are very distinctive white birds with two long tail streamers. Their supposed ...

‘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 ...

In addition to the formal trends and research papers that emerge from analysis of BTO Garden BirdWatch data, we also present data summaries for the core species that we monitor, together with basic ...

From increasing your confidence when counting large flocks to understanding how weather influences migration, there are many ways you can add to your birding skill set. Joining a bird survey can be a ...

Commonly referred to as the UK Red List for birds, the status of birds has now been reviewed five times, covering the UK, Channel Islands and Isle of Man. The latest review was published in December ...

BTO offers several products and services that work alongside the Acoustic Pipeline to help provide an end-to-end workflow for acoustic monitoring. The Acoustic Pipeline Tools is a Shiny application ...

Welcome to the BTO Acoustic Pipeline Support Hub. Here you can find guides, technical requirements, information about equipment and other resources to help you ...

Scotland has remote and dramatic landscapes - it’s part of what makes it special. It also has a relatively low human population density. These things combined make it harder to find all of the ...