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The site was identified as internationally important for bird conservation in 2009 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Pied Oystercatcher Haematopus longirostris	LC	resident (1982–2008)	112–382 birds	A4i
Sooty Oystercatcher Haematopus fuliginosus	LC	resident (1982–2008)	152–200 birds	A4i
Hooded Plover Thinornis cucullatus	VU	resident (1995–2007)	18 pairs	A1
Fairy Tern Sternula nereis	VU	resident (1977–2008)	29 birds	A1
Rock Parrot Neophema petrophila	LC	resident (1998–2008)	common	A3
Blue-breasted Fairywren Malurus pulcherrimus	LC	resident (1998–2008)	uncommon	A3
Western Whipbird Psophodes nigrogularis	LC	resident (2008)	frequent	A1, A2, A3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2008) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Residential and commercial development	happe­ning now	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Human intrusions and disturbance	happe­ning now	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Agricultural expansion and intensification	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Heritage Agreement 870	Conservation Covenant (-)	<1
1991	Whidbey Isles	Conservation Park (Ia)	1
1993	Unnamed (No.HA870)	Heritage Agreement (III)	<1
1993	Mount Dutton Bay	Conservation Park (Ia)	<1
1999	Coffin Bay	National Park (II)	90
2009	Thorny Passage	Marine Park (II)	7
2009	Thorny Passage	Marine Park (II)	7

Habitat	% of IBA	Habitat detail
Marine Intertidal	major (>10)
Marine Neritic	major (>10)
Shrubland	major (>10)	Mallee shrublands & woodlands; Other shrublands
Forest	minor (<10)	Callitris forests & woodlands; Casuarina forests & woodlands

Land use	% of IBA
fisheries/aquaculture	major (>10)
nature conservation and research	major (>10)

Department for Environment and Heritage; Dept. of Fisheries and PIRSA Aquaculture manage private oyster farm leases.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Coffin Bay (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/coffin-bay-iba-australia on 23/12/2024.