spinetail

Short definition from Wiktionary

Noun

1. 1
   Any of several species of swifts of Apodinae, having shafts of the tailfeathers terminate in rigid spines.
2. 2
   Any of several species of South American and Central American clamatorial birds belonging to Synallaxis and allied genera of the ovenbird family Furnariidae.
3. 3
   A ruddy duck (Oxyura jamaicensis).