Welcome to the British Trust for Ornithology | BTO - British Trust …
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BirdTrack | BTO - British Trust for Ornithology
Project timeline. 2002 Migration watch started, with the initial aim of mapping migration; 2004 Re-named BirdTrack and expanded to cover all seasons; 2013 BirdTrack apps released on iOS and android; 2014 BirdTrack global portal released, allowing data to be entered from anywhere in the world; 2019 BirdTrack moved to a single site handling both …
Make a nest box | BTO - British Trust for Ornithology
Wood is the best material for building a nest box, as long as it is at least 15mm thick. This will prevent the wood warping and provide sufficient insulation to protect chicks from heat or cold. Soft woods, such as pine and cedar, are easy to cut and their natural resins ensure a long life. Hard woods such as oak or beech will also be weather ...
Great White Egret | BTO - British Trust for Ornithology
Great White Egret. Ardea alba (Linnaeus, 1758) HW GRWEG 1210. Family: Pelecaniformes > Ardeidae. A bird of wetland and marsh, the Great White Egret is one of a small group of Continental heron species that have expanded their breeding ranges northwards and joined our avifauna. Formerly a very rare bird in Britain & Ireland, the Great White ...
Birds of Conservation Concern | BTO - British Trust for Ornithology
Birds of Conservation Concern. 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 2021, as Birds of Conservation Concern 5 (BOCC5). An addendum to the status of seabirds was released in September 2024.
Canada Goose | BTO - British Trust for Ornithology
Canada Goose. This introduced species is now widespread across England and Wales, but has a somewhat patchy distribution in Scotland and is localised in Ireland. Native to North America, the Canada Goose was first introduced to Britain in the 17th century. UK numbers have more than doubled since 1984, the result of predator-free nesting sites ...
Cormorant | BTO - British Trust for Ornithology
The Cormorant was almost exclusively a coastal breeder in the UK until 1981, but has since established colonies in many inland areas of eastern and central England (Rehfisch et al. 1999; Newson et al. 2006).Breeding had been recorded at 89 inland sites by 2012, and the inland population had risen to about 2,130 pairs by 2005 and 2,362 pairs in …
Wren | BTO - British Trust for Ornithology
Wren. Small and chestnut brown with a short cocked tail, the Wren is one of our most widespread birds and can be found across Britain & Ireland. The Wren is often heard before it is seen, giving its scolding 'tik-tik-tik-tik' alarm call or in full song which - for such a tiny bird - is remarkably loud! It is found in a wide variety of habitats ...
Puffin | BTO - British Trust for Ornithology
Causes of change. The reasons for the population increases between 1969–70 and Seabird 2000 are not known ().Productivity was low between 1998 and 2013 and this may have contributed to declines, with food shortages and high levels of rainfall causing flooding of burrows both being implicated ().An Icelandic study found a strong correlation between Puffin breeding productivity and local sea ...
Alphabetical list of regularly occurring UK bird species
The BirdFacts database includes an entry for all species on the official British List maintained by the British Ornithologists’ Union. The list below provides an index to the common and widespread species that most birdwatchers can expect to encounter in the UK.