Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Bird_vision> ?p ?o }
- Bird_vision abstract "Vision is the most important sense for birds, since good eyesight is essential for safe flight, and this group has a number of adaptations which give visual acuity superior to that of other vertebrate groups; a pigeon has been described as "two eyes with wings". The avian eye resembles that of a reptile, with ciliary muscles that can change the shape of the lens rapidly and to a greater extent than in the mammals. Birds have the largest eyes relative to their size in the animal kingdom, and movement is consequently limited within the eye's bony socket. In addition to the two eyelids usually found in vertebrates, it is protected by a third transparent movable membrane. The eye's internal anatomy is similar to that of other vertebrates, but has a structure, the pecten oculi, unique to birds.Birds, unlike humans but like fish, amphibians and reptiles, have four types of colour receptors in the eye. One of these receptors gives some species of birds the ability to perceive not only the range visible by humans, but also the ultraviolet part of the spectrum, and other adaptations allow for the detection of polarised light or magnetic fields. Birds have proportionally more light receptors in the retina than mammals, and more nerve connections between the photoreceptors and the brain.Some bird groups have specific modifications to their visual system linked to their way of life. Birds of prey have a very high density of receptors and other adaptations that maximise visual acuity. The placement of their eyes gives them good binocular vision enabling accurate judgement of distances. Nocturnal species have tubular eyes, low numbers of colour detectors, but a high density of rod cells which function well in poor light. Terns, gull and albatrosses are amongst the seabirds which have red or yellow oil droplets in the colour receptors to improve distance vision especially in hazy conditions.".
- Bird_vision thumbnail Bald_Eagle_at_The_National_Zoo.jpg?width=300.
- Bird_vision wikiPageID "18416476".
- Bird_vision wikiPageLength "51683".
- Bird_vision wikiPageOutDegree "174".
- Bird_vision wikiPageRevisionID "683405046".
- Bird_vision wikiPageWikiLink Accommodation_(eye).
- Bird_vision wikiPageWikiLink Action_potential.
- Bird_vision wikiPageWikiLink Aerodramus.
- Bird_vision wikiPageWikiLink Albatross.
- Bird_vision wikiPageWikiLink American_kestrel.
- Bird_vision wikiPageWikiLink American_woodcock.
- Bird_vision wikiPageWikiLink Amodal_perception.
- Bird_vision wikiPageWikiLink Amphibian.
- Bird_vision wikiPageWikiLink Animal_echolocation.
- Bird_vision wikiPageWikiLink Anterior_segment.
- Bird_vision wikiPageWikiLink Anterior_segment_of_eyeball.
- Bird_vision wikiPageWikiLink Archaeopteryx.
- Bird_vision wikiPageWikiLink Arteries.
- Bird_vision wikiPageWikiLink Artery.
- Bird_vision wikiPageWikiLink Atiu_swiftlet.
- Bird_vision wikiPageWikiLink Auk.
- Bird_vision wikiPageWikiLink Barn_swallow.
- Bird_vision wikiPageWikiLink Bat_hawk.
- Bird_vision wikiPageWikiLink Binocular_vision.
- Bird_vision wikiPageWikiLink Bird.
- Bird_vision wikiPageWikiLink Bird_migration.
- Bird_vision wikiPageWikiLink Bird_of_prey.
- Bird_vision wikiPageWikiLink Blind_spot_(vision).
- Bird_vision wikiPageWikiLink Blue_grosbeak.
- Bird_vision wikiPageWikiLink Blue_tit.
- Bird_vision wikiPageWikiLink Broad-billed_prion.
- Bird_vision wikiPageWikiLink Budgerigar.
- Bird_vision wikiPageWikiLink Buteo.
- Bird_vision wikiPageWikiLink Carotenoid.
- Bird_vision wikiPageWikiLink Cat.
- Bird_vision wikiPageWikiLink Category:Bird_anatomy.
- Bird_vision wikiPageWikiLink Category:Vision_by_taxon.
- Bird_vision wikiPageWikiLink Charadriiformes.
- Bird_vision wikiPageWikiLink Chicken.
- Bird_vision wikiPageWikiLink Choroid.
- Bird_vision wikiPageWikiLink Ciliary_muscle.
- Bird_vision wikiPageWikiLink Ciliary_muscles.
- Bird_vision wikiPageWikiLink Clade.
- Bird_vision wikiPageWikiLink Clades.
- Bird_vision wikiPageWikiLink Coloured_oil_droplet.
- Bird_vision wikiPageWikiLink Common_blackbird.
- Bird_vision wikiPageWikiLink Common_buzzard.
- Bird_vision wikiPageWikiLink Common_diving-petrel.
- Bird_vision wikiPageWikiLink Common_diving_petrel.
- Bird_vision wikiPageWikiLink Common_kestrel.
- Bird_vision wikiPageWikiLink Common_redstart.
- Bird_vision wikiPageWikiLink Common_tern.
- Bird_vision wikiPageWikiLink Condor.
- Bird_vision wikiPageWikiLink Cone_(eye).
- Bird_vision wikiPageWikiLink Cone_cell.
- Bird_vision wikiPageWikiLink Contact_lens.
- Bird_vision wikiPageWikiLink Coopers_hawk.
- Bird_vision wikiPageWikiLink Cornea.
- Bird_vision wikiPageWikiLink Cryptochrome.
- Bird_vision wikiPageWikiLink Dioptre.
- Bird_vision wikiPageWikiLink Diurnality.
- Bird_vision wikiPageWikiLink Double_cone.
- Bird_vision wikiPageWikiLink Double_cones.
- Bird_vision wikiPageWikiLink Electromagnetic_spectrum.
- Bird_vision wikiPageWikiLink Eurasian_blue_tit.
- Bird_vision wikiPageWikiLink European_robin.
- Bird_vision wikiPageWikiLink Eutheria.
- Bird_vision wikiPageWikiLink Eye.
- Bird_vision wikiPageWikiLink File:Bird_blink-edit.jpg.
- Bird_vision wikiPageWikiLink File:Colibri-thalassinus-001-edit.jpg.
- Bird_vision wikiPageWikiLink File:Crested_tern444_edit.jpg.
- Bird_vision wikiPageWikiLink Fish.
- Bird_vision wikiPageWikiLink Fovea_centralis.
- Bird_vision wikiPageWikiLink Frogmouth.
- Bird_vision wikiPageWikiLink Frogmouths.
- Bird_vision wikiPageWikiLink Ganglion.
- Bird_vision wikiPageWikiLink Gene.
- Bird_vision wikiPageWikiLink Great_cormorant.
- Bird_vision wikiPageWikiLink Great_shearwater.
- Bird_vision wikiPageWikiLink Gull.
- Bird_vision wikiPageWikiLink Harderian_gland.
- Bird_vision wikiPageWikiLink Hertz.
- Bird_vision wikiPageWikiLink Hooded_merganser.
- Bird_vision wikiPageWikiLink Horned_owl.
- Bird_vision wikiPageWikiLink House_sparrow.
- Bird_vision wikiPageWikiLink Human.
- Bird_vision wikiPageWikiLink Hummingbird.
- Bird_vision wikiPageWikiLink Infrared.
- Bird_vision wikiPageWikiLink Iodopsin.
- Bird_vision wikiPageWikiLink Iris_(anatomy).
- Bird_vision wikiPageWikiLink Kerguelen_petrel.
- Bird_vision wikiPageWikiLink Kingfisher.
- Bird_vision wikiPageWikiLink Lachrymal_gland.
- Bird_vision wikiPageWikiLink Lacrimal_gland.
- Bird_vision wikiPageWikiLink Lens_(anatomy).
- Bird_vision wikiPageWikiLink Little_egret.
- Bird_vision wikiPageWikiLink Loon.
- Bird_vision wikiPageWikiLink Magnetic_field.
- Bird_vision wikiPageWikiLink Magnetoception.