Search

Moult and ageing of male Falcated Ducks in autumn

01 January 2012 Comments Main paper Abstract ... Read More

Recent changes in the habits of the Kittiwake

01 May 1962 Comments Main paper K I T T I W A K E S (Rissa iridactyla) are relatively specialised gulls; not only are they adapted to nesting on small rock ledges on precipitous cliff faces (see Cullen 1957), but they are probably the most oceanic of the gulls outside the breeding seaso... Read More

The plumage and leg colour of the Kittiwake and comments on the non-breeding population

01 June 1959 Comments Main paper IT IS an advantage in ecological studies to be able to divide a population into age groups or into mature and immature stages In the Laridae (gulls and terns), where the majority of species have a distinctive " i m m a t u r e " plumage, it has been assum... Read More

The wreck of Kittiwakes in Early 1957

01 July 1958 Comments Main paper T H E KITTIWAKE (Rissa tridactyla) is an oceanic bird which breeds along the North Atlantic shores, down to about 40°N. At the end of the breeding season the birds move out to the open Atlantic and during the winter months they are found chiefly betwee... Read More