Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Strigiformes - (Family) Strigidae
Original position
Current position
	Alternative positions
	
			Historical positions
			
				
					| Striginae (Subfamily) Vigors, 1825 | Ref: 
							
								E.C. Dickinson, 2003: 227. | 
					
						| Strigidae (Family) Vigors, 1825 | Ref: 
								
									B.L. Monroe Jr. & C.G. Sibley, 1993: 79. | 
						
							| Buboninae (Subfamily) Vigors, 1825 | Ref: 
									
										C.M. Perrins, 1991 (1990) | 
							
								| Strigidae (Family) Vigors, 1825 | Ref: 
										
											W.J. Bock, 1982: 989.
										 [rough position] | 
								
									| Striginae (Subfamily) Vigors, 1825 | Ref: 
											
												B. Grzimek et al., 1975 (1969): 579. | 
									
										| Striginae (Subfamily) Vigors, 1825 | Ref: 
												
													P. Brodkorb, 1971: 221. | 
										
											| Accipitres (Order) Linnaeus, 1758 | Ref: 
													
														C. a Linné, 1766: 117, 131. | 
											
												| Accipitres (Order) Linnaeus, 1758 | Ref: 
														
															C. Linnaeus, 1758: 83, 92. | 
											
											Number of Subtaxa