Spatial variation in spring arrival patterns of Afro-Palearctic bird migration across Europe

This study looked at the variation across space in spring arrival time to Europe for 30 species of birds which winter in Africa.

A family of process-based models to simulate landscape use by multiple taxa

Promoting landscapes that are better for wildlife

One way to determine where habitat restoration might most usefully occur is to use computer models to predict how changing landscapes in particular areas might best benefit different wildlife group

Waterbirds in the UK 2022/23

Read the latest results of the annual Wetland Bird Survey Report and the Goose and Swan Monitoring Programme surveys.

Use of dwarf shrubland–grassland mosaics by a nomadic predatory bird, the Short-eared Owl Asio flammeus

Identifying habitat needs for Short-eared Owls

A substantial proportion of Britain’s Short-eared Owl population breeds on managed moorland, where these avian predators specialise on small mammal prey.

Seabird population and demographic monitoring in the UK: a review and recommendations for future sampling

Review of the Seabird Monitoring Programme highlights new opportunities

Current annual trend information delivered by the Seabird Monitoring Programme (SMP) is imprecise, absent, or geographically limited for several UK breeding seabird species.

Northern Ireland Seabird Report 2023

The benefits of protected areas for bird population trends may depend on their condition

BTO-led research highlights the importance of the quality of protected areas in their effectiveness.

BirdTrends 2023

Read BTO’s BirdTrends 2023 Report

BTO’s BirdTrends 2023 report provides summary information about the population status of the common breeding birds of the wider UK countryside.

Synchronous timing of return to breeding sites in a long-distance migratory seabird with ocean-scale variation in migration schedules

Fidelity and distance to previously visited sites throughout the annual cycle in a trans-Saharan migrant, the Common Cuckoo

Research in collaboration with BTO scientists has used data from satellite-tracked adult male Cuckoos to show that although all birds returned to the same breeding grounds in consecutive years, the

Modelling population-level impacts of wind farm collision risk on Welsh Red Kites

Red Kites and onshore wind in Wales

The Welsh Red Kite population is currently in ongoing recovery after a historic decline driven by persecution, and a consequent population bottleneck during the first half of the 20th century.

Cross population comparison of complex migration strategies in a declining oceanic seabird

Arctic Skuas are long-distance migrant seabirds that have seen large declines in breeding numbers across areas of the nor

Breeding periods of hedgerow-nesting birds in England

Breeding periods of hedgerow-nesting birds in England

Characterisation, prevalence and severity of skin lesions caused by ophidiomycosis in a population of wild snakes

Bailiwick Bat Survey: 2023 season report

Bailiwick bat survey report findings

The Bailiwick Bat Survey capitalises on the interest and enthusiasm of volunteers to participate in biodiversity monitoring to systematically collect bat distribution and activity data across Guern

Challenges in quantifying the responses of Black-legged Kittiwake to habitat variables and local stressors due to individual variation

During the 2021 breeding season, BTO scientists tracked 20 Kittiwakes, fitted with small GPS devices, from Whinnyfold – par

Species- or habitat- based assessments of vulnerability to climate change? Informing climate change adaptation in special protection areas for birds in England

In this paper, two approaches commonly adopted by Natural England for climate change vulnerability assessments were used to assess the vulnerability to climate change of Special Protection Areas (S

Understanding population change: the value of the EuroCES constant-effort ringing programme

Insights on bird populations from across Europe

Anthropogenic climate and land-use change drive short-and long-term biodiversity shifts across taxa

This collaborative research involving BTO attempted to start understanding how habitat change and climate change interact.

Leakage of plastics and other debris from landfills to a highly protected lake by wintering gulls

The study, led by the Institut de Ciències del Mar and Estación Biológica de Doñana, CSIC, Spain, used diet samples collected in January 2022 at the Fuente de Piedra – an inland lake in Spain that