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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
Common Little Bittern Ixobrychus minutus	LC	breeding	2000	12-19 breeding pairs	C6
Black-crowned Night Heron Nycticorax nycticorax	LC	breeding	1999-2000	686 breeding pairs	A4i, B1i, B2, C2, C6
Squacco Heron Ardeola ralloides	LC	breeding	1999-2000	193 breeding pairs	A4i, B1i, B2, C2, C6
Purple Heron Ardea purpurea	LC	breeding	2001	27-33 breeding pairs	C6
Little Egret Egretta garzetta	LC	breeding	1999-2000	1,543 breeding pairs	A4i, B1i, C2, C6
Black-winged Stilt Himantopus himantopus	LC	breeding	1995	300-330 breeding pairs	A4i, B1i, C2, C6
Black Tern Chlidonias niger	LC	breeding	1995	100-150 breeding pairs	C2, C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	2000	3 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
1991	Parco naturale del Bosco delle Sorti della Partecipanza di Trino	Parco naturale regionale/provinciale	2
1991	Zona di salvaguardia del Bosco della Partecipanza di Trino	Altre Aree Naturali Protette Regionali	1
1991	Bosco delle Sorti della Partecipanza di Trino	Regional Nature Park	4
1995	Bosco della Partecipanza di Trino	Site of Community Importance (Habitats Directive)	4
1995	Fontana Gigante (Tricerro)	Site of Community Importance (Habitats Directive)	1
1995	Palude di S. Genuario	Site of Community Importance (Habitats Directive)	2
2000	Risaie vercellesi	Special Protection Area (Birds Directive)	7
2000	Palude di San Genuario e San Silvestro	Special Protection Area (Birds Directive)	5
2000	Bosco della Partecipanza di Trino	Special Protection Area (Birds Directive)	4
2006	Riserva naturale speciale Palude di San Genuario	Riserva naturale regionale/provinciale	2
2006	Fontana Gigante (Tricerro)	Special Protection Area (Birds Directive)	1
2006	Riserva naturale speciale di Fontana Gigante	Riserva naturale regionale/provinciale	1

Habitat1	Habitat detail	% of IBA
Artificial/Terrestrial	Arable land	90
Forest		5
Wetlands (inland)		5

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	75
hunting	25
nature conservation and research	10
forestry	5
fisheries/aquaculture	5
urban/industrial/transport	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Vercelli rice-fields (Italy). Downloaded from https://datazone.birdlife.org/site/factsheet/vercelli-rice-fields-iba-italy on 23/11/2024.