Source : Webster's Revised Unabridged Dictionary (1913)

Kittiwake \Kit"ti*wake\, n. (Zo["o]l.)
   A northern gull ({Rissa tridactyla}), inhabiting the coasts
   of Europe and America. It is white, with black tips to the
   wings, and has but three toes.

Source : WordNet®

kittiwake
     n : small pearl-gray gull of northern regions; nests on cliffs
         and has a rudimentary hind toe