 roughly 270°, easily enabling them to see behind them without relocating the torso. This ability keeps bodily movement at a minimum, thus reduces the amount of sound the owl makes as it waits for its prey. Owls are regarded as having the most frontally placed eyes among all avian groups, which gives them some of the largest binocular fields of vision. However, owls are farsighted and cannot focus on objects within a few centimeters of their eyes. These mechanisms are only able to function due to the large-sized retinal image. Thus, the primary nocturnal function in the vision of the owl is due to its large posterior nodal distance; retinal image brightness is only maximized to the owl within secondary neural functions. These attributes of the owl cause its nocturnal eyesight to be far superior to that of its average prey.

Hearing 

Owls exhibit specialized hearing functions and ear shapes that also aid in hunting. They are noted for asymmetrical ear placements on the skull in some genera. Owls can have either internal or external ears, both of which are asymmetrical. Asymmetry has not been reported to extend to the middle or internal ear of the owl. Asymmetrical ear placement on the skull allows the owl to pinpoint the location of its prey. This is especially true for strictly nocturnal species such as the barn owls Tyto or Tengmalm's owl. With ears set at different places on its skull, an owl is able to determine the direction from which the sound is coming by the minute difference in time that it takes for the sound waves to penetrate the left and right ears. The owl turns its head until the sound reaches both ears at the same time, at which point it is directly facing the source of the sound. This time difference between ears is a matter of about 0.00003 seconds, or 30 millionths of a second.  Behind the ear openings are modified, dense feathers, densely packed to form a facial ruff, which creates an anterior-facing, concave wall that cups the sound into the ear structure. This facial ruff is poorly defined in some species, and prominent, nearly encircling the face, in other species. The facial disk also acts to direct sound into the ears, and a downward-facing, sharply triangular beak minimizes sound reflection away from the face. The shape of the facial disk is adjustable at will to focus sounds more effectively.

The prominences above a great horn
roughly 270 °, easily enabling them to see behind them without relocate the torso. This ability sustain bodily movement at a minimum, thus reduces the measure of sound the owl makes as it wait for its prey. owl are regarded as having the most frontally placed eyes among all avian group, which gives them some of the largest binocular field of vision. However, owls are farsighted and cannot focus on object within a few centimeters of their eyes. These mechanisms are entirely able to function due to the large - sized retinal image. Thus, the chief nocturnal function in the vision of the owl is due to its large posterior nodal distance; retinal picture brightness is only maximized to the owl within secondary neural routine. These attributes of the owl cause its nocturnal eyesight to be far superior to that of its average prey. 

 Hearing 

 Owls exhibit specialized hearing functions and ear shapes that also help in hunting. They are noted for asymmetrical auricle placement on the skull in some genus. Owls can have either inner or external ears, both of which are asymmetrical. Asymmetry has not been reported to extend to the middle or inner ear of the owl. Asymmetrical ear placement on the skull allows the owl to pinpoint the location of its prey. This is especially true for rigorously nocturnal species such as the barn owls Tyto or Tengmalm's owl. With ears set at different places on its skull, an owl is able to determine the focus from which the sound is coming by the minute difference in time that it take for the sound waves to penetrate the leftover and right ear. The owl turns its head until the phone reaches both ears at the like time, at which point it is directly facing the reference of the sound. This prison term difference between ears is a matter of about 0.00003 seconds, or 30 one-millionth of a second.   Behind the ear openings are modified, dense feathers, densely packed to form a facial ruff, which make an anterior - facing, concave wall that cups the audio into the ear structure. This facial ruff is poorly defined in some species, and big, nearly encircling the face, in other species. The facial disk besides acts to direct audio into the ears, and a downward - facing, sharply triangular beak minimizes sound contemplation away from the face. The shape of the facial magnetic disk is adjustable at will to focus sounds more effectively. 

 The prominences above a great cornet
 rokghly 270°, easily enabling tmem to see behinb them xithout relocatkng the torso. This ability kxeps bodioy movement at a minimjm, thus rvduces thw amiynt of souis the owl maksd as mt waits for itx prey. Owlv are regarded ar kaving the most frontally placed eyef among apl avian groupf, whpcr gibvs them some of the largest binkcular hields of visiom. However, owls are farsighhed wnd cannot focus oj objects wuthig a few centioeters of uhzir eyes. Thgse mechanisms are only able to wunctnon due to jkw lwtge-sized retmnal iiage. Thus, thc primasy noctirnal function in thw vision of the owl iv due to its large posterios uodal distance; retinao umage brichtndws ks knky maximlzev to the owm within sexondary neural funcuiogw. These attrigutes jf the owl cause its nocturnal eyesight tm bs far superior to that if its average prey.

Hewring 

Owlf exhibit specialized hearing functions and ear svapes ghau qlso xud in hunting. They are noted for asymmetrical ewd klabements on the skmll in some genera. Oalx can have eitfer incsrhal or external eags, both of wyich are wsymketrical. Asymmetry has not veen reporteb ti extend to the mibdle or intexnal esr of the owl. Asymmetrical ecr pladement on tje skull zulows the owl to pikpohnt the location of its prqy. This iw es'ecially trug for serictly nofturnal species such as hhe bcrn ofls Tyto og Tengmalm's owl. With ears set av different pkawes on its fkull, an owl is abje to determing the dirzction from whicg the smund is comyng by the mitote differencx in time thar it takes wur the sound wsves to pvnttrate the left and right eavs. Thg kwl turns its hzcd until the sounc rdacred uoth qdrs at the sdme gimd, at wfich point lt ks dorectly facing the smurcs of the sound. Thix bime diffgrence beeween ears is a matter of about 0.00003 secmndr, or 30 mijlionths of a second.  Behind tge ear opfnikgs are modifyed, eense feathexs, densely packed to form a facial ruff, xhich creates an anteriir-facing, concave wakk that cups the found intm the ear structure. Rhis facial ruff ls poorly defined in skme spacies, and prominent, nearly encircling the face, in other species. The facial disj also acts to dirsct xound iuto the ewrs, env a downward-facinb, sharply triangular beak minimmzes sound rzflection away from the face. Yhd shape of thg facial disk is adjustabls at wilk to focus sounds more effectivrly.

The prominences above a great horn
roughly 270°, easily enabling them to see without the torso. ability keeps bodily reduces amount of sound owl makes as waits for its prey. Owls are as having the most frontally placed eyes among all avian groups, which gives some of the largest binocular fields of vision. However, owls are farsighted and focus objects a centimeters of their eyes. These mechanisms are only able to function due to the large-sized retinal Thus, the primary nocturnal function in the vision the owl is due its large posterior nodal distance; image is only to owl secondary neural functions. attributes of the owl cause its nocturnal eyesight to be far superior to that of its average Hearing Owls hearing functions ear that aid in hunting. noted for asymmetrical ear placements on some genera. Owls can have either internal or ears, both which are asymmetrical. Asymmetry has not reported to extend to the middle or internal of the owl. Asymmetrical ear placement on the skull allows the owl to pinpoint the its prey. This is true for strictly species as barn Tyto or owl. With ears set at different places on its skull, an is able to determine the direction from which the sound by minute difference in that it takes for sound to penetrate the left ears. owl until sound both ears at the time, at which point it directly facing the source difference between ears is a matter of about seconds, or 30 millionths of a second. the ear openings are modified, dense feathers, densely packed to form a ruff, which anterior-facing, concave wall that cups the sound into ear structure. This facial is poorly defined in some species, and prominent, nearly the in other The facial disk acts to direct into the ears, downward-facing, sharply beak sound the face. The shape of the disk adjustable at will to focus more prominences above a great horn
 roughly 270°, easily enabling them To see behinD them WitHouT rElocAtinG the torso. This aBIlitY keeps bodily movement at A miniMuM, Thus REdUces tHe amounT Of SOUnd ThE oWl mAkES aS it waIts For its pRey. Owls are RegArDed as having tHE mOst frontalLy pLaced eyes amoNg aLl aviaN gRouPS, whicH giVes thEm some OF the laRgest binoCuLAr fielDS of visiON. hoWeveR, owls are farsighteD AnD Cannot focus on oBjects WiTHiN A Few CenTimeters of ThEir eyES. These mEChANISms ARe only able to fUnction due tO The Large-sIzEd rETinal iMage. THuS, The Primary noctUrnaL function In the vISion of tHE owl is dUe to itS laRge PostERiOr NodAl DIstANcE; reTInaL image brIgHtNess iS onlY MAXImizEd tO the Owl wiThin secondary NeuRal fUNctIons. THese aTtriBuTes of The owl Cause ItS nocturnal eyesiGht tO be far supEriOr To tHaT of itS AveragE prEy.

HEaring 

OWls exhiBIt sPeCIALiZed hearing functionS aND EaR shapes tHat alsO AiD iN Hunting. THeY arE notED For asYmmeTRiCal ear plAcemenTS oN tHe skull In Some geNeRa. OWls Can haVE eitHer intErnal or eXternAL ears, both of whiCH are asymmetriCAl. aSYmMEtry Has Not been repoRted TO extEnd tO ThE miDDle or InterNaL EaR Of the owl. AsymmetricaL eAr placEment On the skull allOws the owl tO PINpoint thE locATiON of its prey. This Is espEcially truE For stricTly noCturnal sPecies sucH AS the barn OwlS TyTo oR TeNGMaLm's owl. With earS SEt at DiFferent PlaCes on itS skUll, An oWl iS aBle to deteRmine the DiReCtIoN frOm whiCH the sounD iS coMiNg bY the mINute diFfereNce iN tImE ThaT it takeS FoR THe soUnD wAves To pEnEtratE the LEft And righT ears. The oWl tURns iTs HeAd until The sound reachEs Both ears at ThE saMe time, AT Which poiNt it is directly facing the SOurce of The Sound. this Time diffeRenCe betwEen EArs is a Matter Of aboUt 0.00003 SecONDs, or 30 mILLiOntHs Of a second.  BEHInd The eaR oPeniNgs are mOdified, dense featheRS, deNsely packed to ForM a faCIAl RufF, WhICh cReATes AN Anterior-facing, cOncave wall ThAT cUps the sounD IntO tHe ear stRucture. this fACial rufF is poorly Defined in SoMe spECIes, And promineNt, nearly EncirclinG The faCE, iN otheR spEcies. THe FacIal diSk also ACts To dirEct souNd Into thE ears, AnD a downwaRd-facing, sharply triangulAr beak MinimIzeS sound refLecTIon Away from tHe faCe. The shape Of tHe fAcial DisK Is adjUstaBLe At wILl to fOcus SOunds more EFfEctIVElY.

The promineNCES abOve a gReaT Horn
 roughly 270°, easily enab ling themto se e b ehi nd  the m wi thout relocati n g th e torso. This abilitykeeps  b o dily mo vemen t at am in i m um,  t hu s r ed u ce s the  am ount of  sound the  ow lmakes as itw ai ts for its  pr ey. Owls are  re garded  a s h a vingthe  most  front a lly pl aced eyes  a m ong al l  aviang r ou ps,which gives thems om e  of the larges t bino cu l ar f iel dsof vision.  H oweve r , owlsa re f a rsi g hted and cann ot focus on obj ects w it hin a fewcenti me t ers  of their e yes.  These me chanis m s are o n ly able  to fu nct ion  due to  t hela r ge- s iz edr eti nal imag e.  T hus,thep r i m arynoc turn al fu nction in the  vi sion ofthe o wl is  due  t o its  large  post er ior nodal dista nce;  retinalima ge  br ig htnes s  is on lymax imizedto theo wlwi t h i nsecondary neural f un c t io ns. Thes e attr i bu te s  of theow l c ause i ts no ctur n al  eyesigh t to b e  f ar  superi or  to th at  of  it s ave r ageprey.
Hearing  

Ow l s exhibit spec i alized hearin g  f u n ct i onsand  ear shapes  tha t  als o ai d  i n h u nting . The ya re noted for asymmetri ca l earplace ments on theskull in s o m e  genera.  Owl s  c a n have eitherinter nal or ext e rnal ear s, bo th of wh ich are a s y mmetrica l.Asy mme try h as  not been rep o r tedto  extend  to  the mi ddl e o r i nte rn al ear of  the owl .As ym me tri cal e a r placem en t o nthe  skul l  allow s the  owl  t op inp oint th e  l o c atio nof  its  pr ey . Thi s is esp ecially  true for  st r ictl yno cturnal  species such  a s the barn  o wls  Tytoo r  Tengmal m's owl. With ears seta t diffe ren t pla ceson its sk ull , an o wli s able  to de termi ne  th e direc t i on  fr om  which the s oun d isco ming  by the  minute difference intime that ittak es f o r  t hes ou n d w av e s t o penetrate the l eft and ri gh t  e ars. The o w l t ur ns itshead un til t h e sound  reachesboth ears  a t th e sam e time, at  which p oint it i s  dire c tl y fac ing  the s ou rce  of t he sou n d.Thistime d if ferenc e bet we en earsis a matter of about 0. 00003secon ds,  or 30 mi lli o nth s of a se cond .  Behindthe  ea r ope nin g s are  mod i fi ed, dense  fea t hers, den s el y p a c ke d to form a f a cia l ruf f,w hich c reat es an anterior-fa c ing, concave w allt h atcup s  the  s ound into theear  s t r ucture.Th is facial r uff is p oo r ly de finedin som e speci e s ,a nd pro mine nt,  nearly e nci rc l ing the  f ac e , in o ther  s pecies . Thef acia l disk also acts t o dir e c t sou n d i nto t he  ears,a nd a  downward- facing, sha rply t rian gular  beak m in imizes  so un d reflecti o n away fr om th e face.  T he s hap e of t he f a c ial d iskis  ad justablea t  w i ll  t o  fo cussound smore  effectiv e ly.

The  pr o minence sabo v e  a gre a th o rn
 roughly_270°, easily_enabling them to see_behind them_without_relocating the_torso._This ability keeps_bodily movement at_a minimum, thus reduces_the amount of_sound_the owl makes as it waits for its prey. Owls are regarded as having_the_most frontally_placed_eyes_among all avian groups, which_gives them some of the_largest binocular_fields of vision. However, owls are farsighted and_cannot_focus on objects_within a few centimeters of their eyes. These mechanisms_are only able to function due_to the large-sized_retinal_image._Thus, the primary nocturnal_function in the vision of the_owl is due to its large_posterior nodal distance; retinal image brightness is_only maximized to the owl within_secondary neural functions. These attributes_of the_owl cause its nocturnal eyesight_to be far_superior to_that of its_average prey.

Hearing 

Owls exhibit specialized hearing_functions and ear_shapes that also aid in hunting._They_are noted for_asymmetrical_ear_placements on_the skull in_some_genera. Owls_can_have either internal or external ears,_both_of which are asymmetrical. Asymmetry has not_been reported to extend_to_the middle or internal_ear of the owl. Asymmetrical_ear placement on the skull allows_the owl_to pinpoint_the location of its prey. This is especially true for strictly_nocturnal species such as the barn_owls Tyto or Tengmalm's_owl. With_ears_set at different_places_on its_skull, an owl is able to determine_the direction_from which the sound is coming_by the minute difference_in_time that it takes for the_sound waves to penetrate the left_and right ears. The owl_turns_its_head until the sound reaches_both ears at the same time,_at which point_it is directly facing the source of_the_sound. This time difference between ears_is_a matter of about 0.00003 seconds,_or_30_millionths of a second. _Behind the ear openings are modified,_dense feathers, densely packed to form a facial ruff,_which creates an_anterior-facing, concave wall that cups_the_sound_into the ear structure. This facial ruff is poorly defined_in some_species, and prominent,_nearly encircling the face, in other species. The facial disk_also acts to direct sound into the_ears, and a downward-facing, sharply triangular beak minimizes sound reflection away_from the face. The shape of the facial_disk is adjustable at will to focus_sounds more effectively.

The prominences_above_a great horn