Assertion: owl | /r/HasAspect | only one fovea
Facets:
value: unlike diurnal birds of prey
type: OTHER
value: normally
type: DEGREE
Source sentences:
text: Unlike diurnal birds of prey, owls normally have only one fovea, and that is poorly developed except in daytime and dusk hunters like the short-eared owl (Asio flammeus).