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The site was identified as internationally important for bird conservation in 2008 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
Band-rumped Storm-petrel Hydrobates castro	LC	breeding (1999)	440–480 pairs	A4ii, B1ii, C2
Monteiro's Storm-petrel Hydrobates monteiroi	VU	breeding (2008)	230–250 pairs	A1
Cory's Shearwater Calonectris borealis	LC	breeding (1996–2001)	25,868 birds	A4ii, B1ii, C2
Audubon's Shearwater Puffinus lherminieri	LC	breeding (1999)	120–140 pairs	B1ii, C2
Roseate Tern Sterna dougallii	LC	breeding (2004–2008)	140–467 pairs	B1ii, C2
A4iii Species group - seabirds	n/a	breeding (1996–2001)	26,000 birds	A4iii, C4

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Ilha Graciosa	Natural Park (-)	-
2008	Costa Noroeste (Ilha Graciosa)	Área Protegida de Gestão de Recursos (VI)	1
2008	Ilhéu da Praia	Reserva Natural (Ib)	1
2008	Costa Sudeste (Ilha Graciosa)	Área Protegida de Gestão de Recursos (VI)	<1
2008	Ilhéu de Baixo	Reserva Natural (Ib)	<1
2008	Ponta da Restinga	Área Protegida para a Gestão de Habitats ou Espécies (IV)	<1
2008	Ponta Branca	Área Protegida para a Gestão de Habitats ou Espécies (IV)	<1
2008	Ponta da Barca	Área Protegida para a Gestão de Habitats ou Espécies (IV)	<1

Habitat	% of IBA	Habitat detail
Marine Neritic	100

Land use	% of IBA
nature conservation and research	28
military	-
tourism/recreation	-
fisheries/aquaculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Graciosa (Portugal). Downloaded from https://datazone.birdlife.org/site/factsheet/graciosa-iba-portugal on 23/12/2024.