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The site was identified as important in 2002 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 List1	Season	Year(s)	Size	IBA criteria
Black-crowned Night Heron Nycticorax nycticorax	LC	breeding	1991	259 breeding pairs	C2, C6
Purple Heron Ardea purpurea	LC	breeding	1991	57 breeding pairs	C2, C6
Eurasian Thick-knee Burhinus oedicnemus	LC	breeding	1990-2001	11 breeding pairs	C6
Little Tern Sternula albifrons	LC	breeding	2001	70 breeding pairs	C6
Common Tern Sterna hirundo	LC	breeding	2001	100 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2002) may differ.

Year	Protected Area	Designation	% overlap with IBA
1990	Sistema delle aree protette della fascia fluviale del Po	Altre Aree Naturali Protette Regionali	12
1990	Po e Orba	Regional Nature Park	100
1995	Confluenza Po - Sesia - Tanaro	Site of Community Importance (Habitats Directive)	22
1995	Baraccone (confluenza Po - Dora Baltea)	Site of Community Importance (Habitats Directive)	7
1995	Ghiaia Grande (Fiume Po)	Site of Community Importance (Habitats Directive)	2
1995	Isolotto del Ritano (Dora Baltea)	Site of Community Importance (Habitats Directive)	1
1995	Mulino Vecchio (fascia fluviale del Po)	Site of Community Importance (Habitats Directive)	1
2000	Fiume Po - tratto vercellese alessandrino	Special Protection Area (Birds Directive)	75
2000	Isolotto del Ritano (Dora Baltea)	Special Protection Area (Birds Directive)	1
2000	Baraccone (confluenza Po - Dora Baltea)	Special Protection Area (Birds Directive)	7
2002	Isola di Santa Maria	Site of Community Importance (Habitats Directive)	4
2014	Sponde fluviali di Palazzolo vercellese	Site of Community Importance (Habitats Directive)	1

Habitat1	Habitat detail	% of IBA
Wetlands (inland)	Standing freshwater, Rivers and streams, Water fringe vegetation	60
Artificial/Terrestrial	Highly improved re-seeded landscapes, Arable land, Perennial crops, orchards and groves, Forestry plantations, Ruderal land	20
Forest	Broadleaved deciduous woodland, Alluvial and very wet forest	15
Shrubland	Scrub	5

1. IUCN Habitat classification.

Land use	% of IBA
hunting	50
nature conservation and research	50
tourism/recreation	25
agriculture	15
urban/industrial/transport	5
water management	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: River Po from Dora Baltea mouth to Scrivia mouth (Italy). Downloaded from https://datazone.birdlife.org/site/factsheet/river-po-from-dora-baltea-mouth-to-scrivia-mouth-iba-italy on 23/11/2024.