Tyto alba gracilirostris Hartert 1905 (barn owl)
Aves - Strigiformes - Tytonidae
Alternative combinations: Strix flammea gracilirostris, Tyto gracilirostris
Belongs to Tyto alba according to J. F. Clements et al. 2017
See also Jaume et al. 1993
Sister taxa: Tyto alba delicatula, Tyto alba furcata, Tyto alba pratincola, Tyto alba punctatissima
Ecology: volant carnivore
Distribution: found only at Bujero del Silo, La Gomera (Quaternary of Spain)