swartback

From swart +‎ back.

swartback (plural swartbacks)

1. (obsolete, Scotland) The great black-backed gull (Larus marinus).
   • 1822, [Walter Scott], The Pirate. […], volume (please specify |volume=I to III), Edinburgh: […] [James Ballantyne and Co.] for Archibald Constable and Co.; London: Hurst, Robinson, and Co., →OCLC:

     Thy foot had been on the Maiden-skerrie of Northmaven, known before but to the webbed sole of the swartback.

• “swartback”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.