i Register
In some senses, spinetail is marked as US. Watch for register when choosing this word.
noun
Any of several species of swifts of Apodinae, having shafts of the tailfeathers terminate in rigid spines.
Any of several species of South American and Central American clamatorial birds belonging to Synallaxis and allied genera of the ovenbird family Furnariidae.
A ruddy duck (Oxyura jamaicensis).