A person used as a cover for some questionable activity.

synoniemen: figurehead, front, front man, nominal head, straw man.

Pools: figurant

A weak or sham argument set up to be easily refuted.

synoniem: straw man.

An effigy in the shape of a man to frighten birds away from seeds.

synoniemen: bird-scarer, scarecrow, scarer, straw man.

Nederlands: vogelschrik, vogelverschrikker
Pools: strach na wróble