Increase in the rate of recovery of Shiant Isles Atlantic puffin, razorbill
, European shag, and other seabird populations, as predicted by similar rat eradication projects elsewhere in the UK, with productivity at or above the level required to maintain stable populations by the end of the project (this level is 0.
In contrast, neither growth rate nor departure mass declined with hatching date in any Thick-billed Murre or Razorbill
sample in which the relationship between parental quality and timing of breeding was randomized.
left its colony during the evening (around 8pm) and flew 23km (14 miles) to the south west, before landing on the water an hour later.
The photograph was closely inspected and the bird was identified as a razorbill
The creature - known as razorbill
M23170 - ringed as a chick 41 years ago, has become the oldest known UK bird of its kind, the British Trust for Ornithology claimed yesterday.
A] ST CROW, Lili Strange Angels Razorbill
, 2009 293pp $16.
, which was tagged with the number M23170 more than 41 years ago, has lived more than three times as long as the species' typical lifespan, and is still breeding on the same cliff on Bardsey Island where it hatched.
VICTIMS: Above, a gannet, right, razorbill
and far right, a guillemot; POISONED: Puffin, left, great skua, right and below left, a lesser black backed gull; SINKING: The Prestige goes down off the Spain coast last November
MEAD, Richelle Vampire Academy 332pp ISBN 9781595141743; Frostbite 327pp ISBN 9781595141750 SCIS 1374719; Shadow Kiss 444pp ISBN 9781595141972 SCIS 1392280 Razorbill
(Vampire Academy), 2008 $12.
WITH its distinctly forgettable name you'd be forgiven for thinking there was nothing special about the razorbill
known as M23170.
living on Bardsey Island, off the Lln Peninsula, has celebrated its 42nd birthday.
Now it has emerged the island is also home to Britain's oldest razorbill
- first ringed as a chick on July 2, 1962, exactly 42 years ago.