1. Eurasian subspecies of tundra swan; smaller than the whooper
   - Bewick's swan

Type of: Cygnus columbianus, tundra swan

• Atabrine
• Atacama Desert
• Atacama Trench
• atactic
• atactic abasia
• Atakapa
• Atakapan
• ataman
• atar
• ataractic
• ataractic agent
• ataractic drug
• Atarax
• ataraxia
• ataraxic
• ataraxis
• ataraxy
• Ataturk
• atavism
• atavist
• atavistic
• ataxia
• ataxic
• ataxic abasia
• ataxic aphasia