Vagrant. Six records.

Bonaparte's Gull, another vagrant from North America, has appeared in the West Midlands region on seven occasions, The first five were all between 1990 and 1996, followed by an eighteen-year gap before the next, in 2014. Two records are from Warwickshire, four from Staffordshire and one from West Midlands.

Staffordshire

Westport Lake, first-winter, December 24th 1991 (British Birds 86: 489).

Blithfield Reservoir, adult, October 4th - 6th 1994 (British Birds 88: 518).

Blithfield Reservoir, first-winter, April 27th - 30th 1996 (British Birds 90: 484).

Belvide Reservoir, first-summer, April 16th - 22nd 2020 (British Birds 114: 586).

Warwickshire

Abbey Fields, first-winter, Kenilworth, March 10th - 28th 1990 (British Birds 84: 475).
Draycote Water, first-winter, March 18th, 20th, 24th & 29th 1990 (same as above).

Draycote Water, first-summer, May 24th 1992 (British Birds 86: 489).

West Midlands

Marsh Lane, adult, May 1st 2014