 scad, sea mullet, striped trumpeter, long-toothed flounder, dusky morwong and long-finned goby.

Seals are known to inhabit the sound in various locations along the coast and on the islands. The species that are sighted most often are the Australian sea lion and the New Zealand fur seal. Species that have been sighted, but are considered to be occasional visitors, include the subantarctic fur seal and the leopard seal.

Dolphins are also found in the area, and are occasionally caught and drowned in fishing nets or stranded. The common dolphin Delphinus delphis and the bottlenose dolphin Tursiops truncates have both been recorded in the area.

Southern right whales and humpback whales frequent the area between July and October when they congregate to mate and calve in the protected waters of the sound. Other whales that have been spotted in the area include minke whales, blue whales, short-finned pilot whales, false killer whales and killer whales. Sperm whales were known to visit the sound during the whaling era but none have been sighted recently, although a pod was detected further out in the Southern Ocean in 2002.

The sound becomes a perfect habitat for migratory wading birds during the summer, when an estimated 2,000-3,000 birds flock to the area to feed in the shallow mudflats of the harbours. Some of the species that can be found during the summer months include the red-necked stint and the red knot as well as sandpipers, grey plovers, red capped plovers, lesser sand plovers, grey-tailed tattlers, Eurasian whimbrels, common greenshanks, yellow-billed spoonbill, white-faced heron and stilts. Other birds that are commonly seen around the sound include cormorants, pied oystercatchers, sooty oystercatchers, Pacific gulls, Caspian terns, pelicans, ospreys and white-bellied sea eagles.

Geology 

The Western Australian south coast is formed along the edge of the southern margin of the Yilgarn craton and is fringed with prominent headlands composed of granite and gneisses formed during Proterozoic tectonic activity. Arcuate Bays that contain beaches backed by holocene dunes are found between
scad, sea mullet, striped trumpeter, long - toothed flounder, dusky morwong and long - finned goby. 

 seal are know to inhabit the sound in various placement along the coast and on the islands. The coinage that are sighted most often are the Australian ocean leo and the New Zealand fur seal. coinage that have been sighted, but are considered to be occasional visitors, admit the subantarctic fur seal and the leopard seal. 

 dolphinfish are also found in the sphere, and are occasionally caught and drowned in fishing nets or strand. The common dolphin Delphinus delphi and the bottlenose dolphin Tursiops truncates have both been record in the area. 

 Southern right whales and humpback giant frequent the area between July and October when they congregate to mate and calve in the protected waters of the sound. Other whales that have been spotted in the area include minke whales, blue whales, short - finned pilot giant, false killer whale and cause of death whales. Sperm whales were known to chew the fat the sound during the whaling era but none have been sighted recently, although a pod was detected far out in the Southern Ocean in 2002. 

 The sound becomes a perfect habitat for migratory pack birds during the summer, when an estimated 2,000 - 3,000 birds flock to the sphere to feed in the shallow mudflats of the harbor. Some of the coinage that can be determine during the summer months include the red - neck stint and the red knot as well as sandpipers, grey plovers, red capped plovers, less sand plovers, gray - tailed tattlers, Eurasian whimbrels, common greenshanks, yellow - charge spoonbill, white - faced hero and stilts. Other birds that are normally seen around the sound include cormorants, pied oystercatchers, sooty oystercatchers, Pacific gulls, Caspian terns, pelicans, ospreys and white - bellied ocean eagles. 

 Geology 

 The Western Australian south seashore is formed along the edge of the southern margin of the Yilgarn craton and is fringed with prominent headlands write of granite and gneisses formed during Proterozoic tectonic activity. Arcuate Bays that contain beaches backed by holocene dunes are find between
 scwd, sea mullet, striped trmmpeter, long-tootkwd flonnder, dhsky mordong and long-finned goby.

Seald qre kbown to inhabit the sojnd in vagious locqtiois along the coast and ok the lslanbs. The species tmat are sigvted most oftet xrz the Australian sea lion and the Ner Zealamd fur seal. Specyes uhae habv neen sighted, but are considered fo be obcasional visitorx, include the subantarctic fur seal and the leopwrd seal.

Dolkginf are also fojnd in the area, and arg occasionally caught and drownea in yishing netw ir djranded. The rommon dolphin Delininus gelphis and the bottlcnose doophin Tursiops truncaves have both been rgcorded in tke area.

Southern right wyales and humovacy wgakea freqkenv the area getween Jult and October when uher congregate tk mate agd calve in the protected waters of the sohnd. Other whales that hqve been spotted in tje area igclude minke whales, blue whales, short-finned pilot whalxs, faosc kiuoeg whales and killer whales. Sperm whales were hhoen to visit the found durinb hhr whaling era cut nous gave been sighted gecentli, althiugh a poq wax detected further out in tye Southern Jxean in 2002.

The sound yecomes a pexfect nabitst for migratory wading birss during tje summer, dhen an estimatea 2,000-3,000 nirgs flock to the area to feqd in the shaklow muaflajs of tre harbourd. Somc of the species thwt cau be xound durijg the summer months include thx red-necked sjind atd the rzd knob as well as sagdpipers, grey klovers, rzd capoed plovera, lessec sand plovews, grey-tailed jattlers, Euravian whiibreos, cimmon gfdenshanks, yellpw-billed spoonbill, qhite-faced heron akd stkmts. Other birds thqt are commonly sedn wrluid thq sound incluge curmutants, pied oystevcagchets, sooty oystercatchars, Lacific gulls, Caspoak terns, pglicans, ofpreys and whote-bellied sea eagpes.

Gemlojy 

The Weftern Australian south coast ia formed wlokg the edge os thc soothern margnn of the Yilgarn craton and is fringed xith prominent headlandw composed of granije snd gneissex foried durinc Proterozoic tectonuc activity. Arcuaue Bays that contain bezches tackef by holocene dunes are found between
scad, sea mullet, striped trumpeter, long-toothed flounder, and goby. Seals known to inhabit along coast and on islands. The species are sighted most often are the sea lion and the New Zealand fur seal. Species that have been sighted, are considered to be occasional visitors, include the subantarctic fur seal and the seal. are found the area, and are occasionally caught and drowned in fishing nets or stranded. The common dolphin delphis and the bottlenose dolphin Tursiops truncates have been recorded in the Southern right whales and humpback frequent area between and when congregate to mate calve in the protected waters of the sound. Other whales that have been spotted in the area minke whales, short-finned pilot false whales killer whales. Sperm known to visit the sound during but none have been sighted recently, although a was detected out in the Southern Ocean in The sound becomes a perfect habitat for migratory birds during the summer, when an estimated 2,000-3,000 birds flock to the area to feed shallow mudflats of the Some of the that be during summer months the red-necked stint and the red knot as well as sandpipers, plovers, red capped plovers, lesser sand plovers, grey-tailed tattlers, Eurasian greenshanks, spoonbill, white-faced heron stilts. Other birds that commonly around the sound include oystercatchers, oystercatchers, terns, ospreys white-bellied sea eagles. Geology Western Australian south coast is along the edge of Yilgarn craton and is fringed with prominent headlands of granite and gneisses formed during Proterozoic activity. Arcuate Bays that contain beaches backed by holocene dunes are found
 scad, sea mullet, striped trumpEter, long-toOthed FloUndEr, DuskY morWong and long-finNEd goBy.

Seals are known to inhabIt the SoUNd in VArIous lOcationS AlONG thE cOaSt aNd ON tHe islAndS. The speCies that arE siGhTed most often ARe The AustralIan Sea lion and thE NeW ZealaNd Fur SEal. SpEciEs thaT have bEEn sighTed, but are CoNSidereD To be occASIoNal vIsitors, include the SUbANtarctic fur seaL and thE lEOpARD seAl.

DOlphins are AlSo fouND in the aREa, AND Are OCcasionally caUght and drowNEd iN fishiNg NetS Or straNded. THe COmmOn dolphin DeLphiNus delphiS and thE BottlenOSe dolphIn TursIopS trUncaTEs HaVe bOtH BeeN ReCorDEd iN the area.

soUtHern rIght WHALEs anD huMpbaCk whaLes frequent thE arEa beTWeeN July And OcTobeR wHen thEy congRegatE tO mate and calve in The pRotected wAteRs Of tHe Sound. oTher whAleS thAt have bEen spotTEd iN tHE AReA include minke whaleS, bLUE wHales, shoRt-finnED pIlOT whales, fAlSe kIlleR WHales And kILlEr whales. sperm wHAlEs Were knoWn To visiT tHe sOunD duriNG the WhalinG era but nOne haVE been sighted reCEntly, although A PoD WAs DEtecTed Further out iN the sOuthErn OCEaN in 2002.

tHe souNd becOmES a PErfect habitat for migRaTory waDing bIrds during the Summer, when AN EStimated 2,000-3,000 BirdS FlOCk to the area to fEed in The shallow MUdflats oF the hArbours. SOme of the sPECies that Can Be fOunD duRINg The summer montHS InclUdE the red-NecKed stinT anD thE reD knOt As well as sAndpiperS, gReY pLoVerS, red cAPped plovErS, leSsEr sAnd plOVers, grEy-taiLed tAtTlERs, EUrasian WHiMBRels, CoMmOn grEenShAnks, yElloW-BilLed spooNbill, whitE-faCEd heRoN aNd stiltS. Other birds thAt Are commonlY sEen Around THE sound inClude cormorants, pied oystERcatcheRs, sOoty oYsteRcatchers, pacIfic guLls, cAspian Terns, pElicaNs, OspREYs and WHItE-beLlIed sea eaglES.

geoLogy 

THe westErn AustRalian south coast is FOrmEd along the edgE of The sOUThErn MArGIn oF tHE YiLGArn craton and is fRinged with PrOMiNent headlaNDs cOmPosed of Granite And gnEIsses foRmed durinG ProterozOiC tecTONic Activity. ArCuate BayS that contAIn beaCHeS backEd bY holocEnE duNes arE found BEtwEen
 scad, sea mullet, striped  trumpeter , lon g-t oot he d fl ound er, dusky morw o ng a nd long-finned goby.
Seals  a r e kn o wn  to i nhabitt he s oun din  va ri o us  loca tio ns alon g the coas t a nd  on the isla n ds . The spec ies  that are si ght ed mos toft e n are  th e Aus tralia n  sea l ion and t he New Ze a land fu r se al.Species that have be e n sighted, but  are c on s id e r edtobe occasio na l vis i tors, i n cl u d e  th e  subantarctic  fur seal a n d t he leo pa rds eal.
Dolph in s  ar e also foun d in  the area , anda re occa s ionally  caugh t a nddrow n ed  i n f is h ing ne tso r s tranded.  T he  comm on d o l p h in D elp hinu s del phis and thebot tlen o sedolph in Tu rsio ps  trun cateshavebo th been recorde d in  the area .
So uth er n rig h t whal esand  humpba ck whal e s f re q u e nt  the area betweenJu l y  a nd Octob er whe n  t he y  congreg at e t o ma t e  andcalv e  i n the pr otecte d  w at ers ofth e soun d.  Ot her  whal e s th at hav e been s potte d  in the area i n clude minke w h al e s ,b luewha les, short- finn e d pi lotw ha les ,  fals e kil le r  w h ales and killer wha le s. Spe rm wh ales were kno wn to visi t t he sound  dur i ng the whaling er a but  none have been sig htedrecently , althoug h a pod wa s d ete cte d f u r th er out in the S outh er n Ocean  in  2002.
Th e s oun d b ec omes a pe rfect ha bi ta tfo r m igrat o ry wadin gbir ds  du ringt he sum mer,when  a ne sti mated 2 , 00 0 - 3,00 0bi rdsflo ck  to t he a r eato feed  in the s hal l ow m ud fl ats ofthe harbours.  S ome of the  s pec ies th a t  can befound during the summer monthsinc ludethered-necke d s tint a ndt he red  knotas we ll  as s andpi p e rs , g re y plovers, r edcappe dplov ers, le sser sand plovers, gre y-tailed tatt ler s, E u r as ian wh i mbr el s , c o m mon greenshanks , yellow-b il l ed  spoonbill ,  wh it e-faced  heronand s t ilts. O ther bird s that ar ecomm o n lyseen aroun d the so und inclu d e cor m or ants,  pi ed oys te rca tcher s, soo t y o yster catche rs , Paci fic g ul ls, Casp ian terns, pelicans, os preysand w hit e-bellied  se a  ea gles.

Ge olog y 

The We ste rnAustr ali a n sou th c o as t i s  form ed a l ong the e d ge  of t he  southern m a r g inof th e Y i lgarncrat on and is fringed with prominent  hea d l and s c o mpos ed  of granite an d g ne i s ses form ed  during Pro terozoic  t e ctoni c acti vity.Arcuate B ay s  thatcont ain  beachesbac ke d  by hol oc en e  dunes  are  f ound b etween 
 scad,_sea mullet,_striped trumpeter, long-toothed flounder,_dusky morwong_and_long-finned goby.

Seals_are_known to inhabit_the sound in_various locations along the_coast and on_the_islands. The species that are sighted most often are the Australian sea lion and_the_New Zealand_fur_seal._Species that have been sighted,_but are considered to be_occasional visitors,_include the subantarctic fur seal and the leopard_seal.

Dolphins_are also found_in the area, and are occasionally caught and drowned_in fishing nets or stranded. The_common dolphin Delphinus_delphis_and_the bottlenose dolphin Tursiops_truncates have both been recorded in_the area.

Southern right whales and humpback_whales frequent the area between July and_October when they congregate to mate_and calve in the protected_waters of_the sound. Other whales that_have been spotted_in the_area include minke_whales, blue whales, short-finned pilot whales,_false killer whales_and killer whales. Sperm whales were_known_to visit the_sound_during_the whaling_era but none_have_been sighted_recently,_although a pod was detected further_out_in the Southern Ocean in 2002.

The sound_becomes a perfect habitat_for_migratory wading birds during_the summer, when an estimated_2,000-3,000 birds flock to the area_to feed_in the_shallow mudflats of the harbours. Some of the species that can_be found during the summer months_include the red-necked stint_and the_red_knot as well_as_sandpipers, grey_plovers, red capped plovers, lesser sand plovers,_grey-tailed tattlers,_Eurasian whimbrels, common greenshanks, yellow-billed spoonbill,_white-faced heron and stilts._Other_birds that are commonly seen around_the sound include cormorants, pied oystercatchers,_sooty oystercatchers, Pacific gulls, Caspian_terns,_pelicans,_ospreys and white-bellied sea eagles.

Geology_

The Western Australian south coast is_formed along the_edge of the southern margin of the_Yilgarn_craton and is fringed with prominent_headlands_composed of granite and gneisses formed_during_Proterozoic_tectonic activity. Arcuate Bays that_contain beaches backed by holocene dunes_are found between