In Northern Ireland, herring gulls experienced a population increase during the 1950s-1970s, in the Seabird Colony Register census from 1985-1988 there were 17,561 pairs of herring gulls in NI while in a follow-up survey, the Seabird 2000 census, only 722 pairs were recorded.
But, when it opens its bill there is a flash of bright, almost golden yellow on the bird's palate.
This pair are engaging in mating behaviour but the bright yellow can also be useful for chicks being fed and razorbills often quarrel with each other with bills wide open in what is known as bill-gaping.
Each pair will only have one egg and both male and female feed the chick for approximately three weeks.
At around twenty days old the chicks follow the male into the ocean, leaping from the cliff and are fed by him until old enough to become self-sufficient.
Like fulmars, razorbills can live to forty years or more.
Young fulmars spend five years fully at sea, coming back to land to choose a colony after that but even then they won't breed for another few years. They can live for over forty years.
In this image you can see the tube-nose from which the tubenose family get their name, the birds possess a gland which helps to process, store then eject saline through the tube - salty water collected when diving for fish in the north Atlantic.