|Razorbill or Guillemot.|
|Herring gull harassing auks on the cliffs|
|Guillemot chick and adult ready to defend against herring gulls,|
4) Razorbills and numbers of eggs. - After seeing a razorbill trying to incubate 2 eggs I went back at the end of the day and found out what was probably going on. Well it seems that it is possible that razorbills at one time laid and incubated 2 eggs on cliff ledges. In fact they actually still have 2 brood patches (bare skin areas on the breast which have extra blood vessels against which the egg is held to ensure warmth) and though most lay 1 egg occasionally 1 might lay 2 eggs but 1 will never develop. It seems that razorbills are evolving to be like the guillemot and lay and incubate only 1 egg.
|2 doting parents and their single chicks.|
5) Data Entry - Always use a sharp pencil for clear data recording but never, ever keep it in your pocket.