spotted owl Strix nebulosa Sceloglaux albifacies scops owl laughing owl great gray owl tawny owl Strigiformes Athene noctua screech owl raptor Strix aluco hoot owl bird of Minerva hooter Strix varia order Strigiformes long-eared owl little owl bird of prey barred owl horned owl Strix occidentalis Surnia ulula barn owl owl Asio otus raptorial bird Otus asio laughing jackass hawk owl great grey owl Tyto alba owlet

visual modality night vision vision scotopic vision twilight vision sight visual sense

distant

evening dark time period mean solar day twenty-four hour period 24-hour interval period of time lights-out twenty-four hours weeknight solar day small hours period wedding night day nighttime midnight late-night hour

period time period period of time

unit of time time unit

period time period period of time

dark darkness

Aves archaeornis archeopteryx passerine flock dicky-bird neb carinate bird Sinornis rump cuculiform bird syrinx caprimulgiform bird bill fowl hindquarters feather coraciiform bird dickybird uropygium hen raptor apodiform bird parrot plumage flying bird ratite bird croup gallinaceous bird carinate beak bird of prey archaeopteryx nonpasserine bird croupe bird's foot uropygial gland protoavis furcula nester piciform bird night bird pinion vertebrate trogon twitterer preen gland passeriform bird pecker class Aves dickey-bird air sac bird of passage nib wing dickeybird pennon aquatic bird flightless bird raptorial bird ratite craniate Archaeopteryx lithographica cock Ibero-mesornis plume gallinacean

wing pope's nose dark meat giblets second joint thigh wildfowl wishbone poultry giblet oyster fowl meat wishing bone parson's nose drumstick