Property talk:P2621

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Site of Special Scientific Interest (England) ID
identifier for Sites of Special Scientific Interest (SSSIs) in England

Applicable "stated in" value	Site of Special Scientific Interest (Q422211)
Data type	External identifier
Template parameter	"enref" in en:template:Infobox SSSI
Domain	SSSIs in England (note: this should be moved to the property statements)
Allowed values	\d{7} (numeric string, 7 digits)
Example	Cheddar Reservoir (Q5089194) → 1003948 Croham Hurst (Q5187511) → 1003374
Source	English Nature website, Wikipedia infoboxes (note: this information should be moved to a property statement; use property source website for the property (P1896))
Formatter URL	https://designatedsites.naturalengland.org.uk/SiteDetail.aspx?SiteCode=S$1
Robot and gadget jobs	importing data should be possible from en.wp and/or Natural England
Tracking: usage	Category:Pages using Wikidata property P2621 (Q27763736)
Related to country	United Kingdom (Q145) (See 325 others)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P2621 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 812 Main statement 655 80.7% of uses Qualifier 2 0.2% of uses Reference 155 19.1% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Distinct values: this property likely contains a value that is different from all other items. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2621#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2621#Single value, hourly updated report, SPARQL

Format “\d{7}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2621#Format, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2621#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2621#Scope, SPARQL

Example

The example given needs reconsideration. The same entity can't be both an SSSI and have a volume in gallons (the SSSI will either include the reservoir, or be limited to its surrounding land). Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 19:44, 19 March 2016 (UTC)

The reservoir is the SSSI. It's designated as such because of it's importance to birds - see map, citation. Thryduulf (talk: local | en.wp | en.wikt) 21:41, 19 March 2016 (UTC)