Will rat poison kill a duck?

Rat poison can be toxic to ducks if they ingest it. The active ingredient in most rat poisons, such as anticoagulants (warfarin) or bromethalin, can interfere with the normal functioning of the blood and cause internal bleeding, leading to serious health issues. If you suspect that a duck has ingested rat poison, it is essential to seek veterinary assistance promptly to increase the chances of successful treatment.