bergander or bargander /bər-ganˈdər/

The shelduck

• tranquilization
• tranquilize
• tranquilized
• tranquilizer
• tranquilizers
• tranquilizes
• tranquilizing
• tranquilizingly
• tranquiller
• tranquillest
• tranquillisation
• tranquillise
• tranquillised
• tranquilliser
• tranquillisers
• tranquillises
• tranquillising
• tranquillisingly
• tranquillities
• tranquillity
• tranquillization
• tranquillize
• tranquillized
• tranquillizer
• tranquillizers