Another bird which you might occasionally spot in the Tees estuary is the razorbill
, which is very slightly smaller than a guillemot which has a larger head and a much thicker bill.
Young murres and Razorbills
that achieve the greatest horizontal distance during the glide from the nest site (usually located high on a cliff) to sea are those least likely to be injured or killed by striking ledges or rocks en route (Birkhead and Nettleship 1987).
A Research Officer for the RSPB said: "Since the rat eradication, the number of guillemots and razorbills
has increased, and puffin numbers have also increased slowly."
Between them Skomer and Skokholm are home to more than 20,000 puffins as well as around 28,000 guillemots and 9,000 razorbills
, making up the most important colony of cliff-nesting seabirds in southern Britain.
NUMBERS DOWN A cormorant pictured by Kevin O'Hara HEAD WARDEN Farne Islands' David Steel with razorbill
Places that once teemed with guillemots, kittiwakes and razorbills
were virtually deserted last week.
This year's results included just one juvenile kittiwake and a headless razorbill
along the Bridgend coastline but several dead razorbills
were also found at Southerndown in the Vale of Glamorgan.
Species including puffins, Manx shearwaters, guillemots and razorbills
should benefit from the measure agreed by Natural Resources Minister Carl Sargeant.
It is hoped that an extensive GPS-tagging project by RSPB Cymru on Bardsey Island in North Wales, which focused on internationally-significant populations of kittiwakes and razorbills
, can shed light on why Welsh populations have thrived while numbers elsewhere in the UK have collapsed.
"Thousands of young razorbills
, puffins and guillemots are flightless and dispersing widely in the North Sea during late summer.
They will zoom in on puffins, razorbills
The island's new-found status will ensure the future of 40,000 pairs of breeding gannets and it will also become a haven for guillemots, razorbills