He had been thinking of wintering in our town anyway, before my mother sprang her surprise.

NEWYORKER: Gravel

Which is why, my dear, we shall be wintering in the Bakkens.

FORBES: Forget Florida My Dear, This Year We Shall Winter in The Bakkens

The team has already collected feathers from a range of surrogate species around Lake Chad in Nigeria, and is looking for further sites where warblers may be wintering.

BBC: Feathers clue to warbler's travels