bergander or bargander /bər-ganˈdər/

The shelduck

• rost
• rostellar
• rostellate
• rostellum
• rostellums
• roster
• rostered
• rostering
• rosterings
• rosters
• rostra
• rostral
• rostrate
• rostrated
• rostrocarinate
• rostrocarinates
• rostrum
• rostrums
• rosula
• rosulas
• rosulate
• rosy
• rosy-bosomed
• rosy-cheeked
• rosy-coloured