Kittiwakes find refuge on offshore oil rigs
	
	
		
		 
	
		Offshore oil rigs serve as a breeding refuge for Norwegian Black-legged Kittiwakes. Although they are few in number, these birds produce more chicks than kittiwakes in natural colonies along the coast, to the benefit of the impoverished 
		
		
	
	
		
		
		
	
	
	
	
	
	
	
	
	
	
	
		
		The Black-legged Kittiwake (Rissa tridactyla), a small gull feeding on the surface of the ocean, is the most numerous gull in Norway. However, the population has declined rapidly in many parts of the North Atlantic over recen