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Isle of Anglesey

Atlantic Puffin Fratercula arctica ©Nigel Blake Website

Anglesey (Welsh: Ynys Môn) is an island off the north-west coast of Wales. With an area of 276 square miles. It is by far the largest island of Wales and the fifth-largest island in the British Isles (and the largest outside Scotland). Anglesey is also the largest island in the Irish Sea by area, and the second most populous island in the Irish Sea. The population at the 2011 census was 69,751. Two bridges span the Menai Strait, connecting the island to the mainland:.

A historic county of Wales and later administrated as part of Gwynedd, Anglesey today makes up the Isle of Anglesey County along with Holy Island and other smaller islands. Almost three-quarters of Anglesey's inhabitants are Welsh speakers and Ynys Môn, the Welsh name for the island, is used for the UK Parliament and National Assembly constituencies.

The island is mainly flat, and has more wetlands than the mainland. On Anglesey, the tern colony at Cemlyn is a must for birdwatchers from May to July, with several hundred pairs of Sandwich Tern and smaller numbers of Common and Arctic. South Stack gives excellent views of thousands of Guillemots and Razorbills, with smaller numbers of Puffins and some Chough. In autumn and winter, the Llyn Alaw reservoir often holds impressive numbers of wildfowl.

Top Sites

Cemlyn Nature Reserve


Satellite View

Famous for its tern colony which has held roseate terns.

Llyn Alaw Reservoir


Satellite View

Good for wildfowl, especially in Autumn & Winter.

South Stack RSPB


Satellite View

Guillemots, Razorbills & Puffin with a supporting cast of peregrines and chough.

County Recorder

David Wright

Graig Eithin, Mynydd Bodafon, Llanerchymedd, Anglesey LL71 8BG



Useful Reading

Best Birdwatching Sites in North Wales

by Alan Davies & Owen Roberts Nov 2007 Buckingham Press £15.95p
See Fatbirder Review

ISBN: 9780955033940

Buy this book from NHBS.com

Forums & Mailing Lists

North Wales Birding


Trip Reports


Trip Report Repository

CloudBirders was created by a group of Belgian world birding enthusiasts and went live on 21st of March 2013. They provide a large and growing database of birding trip reports, complemented with extensive search, voting and statistical features.

Places to Stay

Click on WAND for tours, guides, lodges and more…

Maelog Lake Hotel - Anglesey


Situated on the approach to the beautiful beach resort of Rhosneigr, the Maelog Lake Hotel is set in a prominent location on the edge of the sand dunes and overlooking the lake. Rhosneigr is a popular destination for visitors with varying interests who are pursuing either the peace and quiet of the rural coast, or to engage in their passion for outdoor pursuits. Whatever your reason for visiting us, you can be assured of a warm welcome and a pleasant stay at the Maelog Lake Hotel.


Cymdeithas Adarydda Cambria - Cambrian Ornithological Society

The C.O.S. is for all birdwatchers with an interest in the north-west Wales area; the new counties of Anglesey, Gwynedd and the western part of Conwy.


Cemlyn Nature Reserve


Satellite View

Cemlyn is one of North Wales Wildlife Trust’s star reserves and regarded by the Anglesey County Council as the “jewel in the crown” of its Area of Outstanding Natural Beauty. It is valued both for its scenic qualities and its unique range of wildlife, and is as popular with general visitors – local people, holidaymakers, walkers etc. as it is with birdwatchers and naturalists.

South Stack Cliffs RSPB


Satellite View

Enjoy a close-up view onto a wonderful cliff-side nesting colony, with binoculars and telescopes provided. You'll be able to watch guillemots, razorbills and puffins all raising their young, while live television pictures give you an even closer view of the nests! Choughs can also be seen on the reserve. In spring and summer, the heathland becomes a riot of colour. Look closely and you may see a basking adder, while out to sea there may be porpoises and dolphins.

Other Links

Natural History of Anglesey


The island of Anglesey holds a wealth of sites of natural interests - cliffs, estuaries, dunes, heaths, wetlands, lakes, parks, and woodland - which are renowned for their birds, flower, geology and landscapes. This site describes some of the best of these, how to get to them and what facilities you will find there.

North Wales Birding


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