The blog focuses on a range of topics, including BTO’s scientific work, BTO Youth programmes of work, and opinion pieces. Sometimes they include interviews with other people, or are written by a ...

Read the latest updates from our Cuckoos on their epic migration between the UK and tropical Africa, or track their movements in real-time on our Cuckoo migration map. If you enjoy these updates, ...

BTO scientists call for urgent investment in long-term monitoring and improved approaches to disease response, as avian influenza decimates a suite of bird species ...

Satellite technology is helping scientists from the British Trust for Ornithology (BTO) to better understand the pressures that the UK’s breeding Cuckoos face as they make annual migrations of 16,000 ...

Beak deformities in wild birds are unusual, with fewer than one in 200 adult birds thought to be affected. However, a number of reports from BTO Garden BirdWatchers have caught our eye, and we are ...

In 2014 we organised a Peregrine Survey to record the number of occupied territories in the UK, Isle of Man and the Channel Islands. We are comparing our findings with surveys from 1961, 1971, 1981, ...

A selected list of publications that involve WeBS data. This list does not include the WeBS annual reports. You can read these on our dedicated Wetland Bird Survey Annual Report page. Austin, G.E.

Many BTO Garden BirdWatchers have a keen interest in other types of wildlife, which is why we also enable participants to records observations of visiting mammals, butterflies, dragonflies, bees and a ...

Recording areas (usually counties) have a Bird Recorder who collates records often linked to the activities of local bird clubs. One of the aims of BirdTrack is to support the County Recorder network ...

Bird Atlas 2007–11 presents over 1,300 detailed maps for nearly 300 species, showing where each breeds and winters, where they are most and least abundant and where status is changing. The species ...

Ringing Groups are formed by people who wish to pursue a common interest in ringing related bird studies. All of the groups below are currently registered with the BTO and operating using BTO rings.

Plumage differences caused by pigmentation changes Changes in the amount and/or distribution of particular feather pigments are some of the most commonly reported types of plumage abnormality. Most ...