A bird baffler consists of two or more booms attached to the stern quarter of the vessel, with at least one boom attached to the starboard stern quarter and at least one boom attached to the port stern quarter:
Is é atá i sciath éan dhá cheann nó níos mó de bhumailí arna gceangal le cúl an tsoithigh, agus bumaile amháin acu sin ar a laghad ceangailte le deasbhord an chúil agus bumaile amháin ar a laghad ceangailte le clébhord an chúil: