Ivory gull. A real five star rarity from the frozen north, this 'Arctic vulture' is a less than annual visitor to our shores and I'd seen just once previously, in 1997. 2013 has proven to be a mega year for rare birds and one of the highlights of its final month was an unprecedented arrival of ivory gulls - I think seven individuals were involved, beating the previous best annual total by one. Most didn't hang around but one in Yorkshire did and soon started to draw crowds as it paid regular visits to a feeding station where fish had been left out for it! I paid my respects on my birthday and enjoyed wonderful views.