Occurrence record: 311864903

Human observation of Chroicocephalus ridibundus (Linnaeus, 1766) | Black-headed Gull recorded on 2022-05-26

API

Overview

Occurrence ID	311864903
Basis of record	Human observation
Scientific name	Chroicocephalus ridibundus (Linnaeus, 1766) - Black-headed Gull
Licence	CC-BY-NC
Record Date	2022-05-26 (Day)
Location	Grid Reference: SD5708 Latitude: 53.571372 Longitude: -2.643247
Recorded by	Withheld
Identification verification status	Accepted - considered correct
Occurrence vitality	alive

Dataset

Data partner	British Trust for Ornithology
Data resource	Birds (BTO+partners) 2021 - 2023
Bibliographic citation	Records provided by BTO, accessed through NBN Atlas website.
Institution code	Supplied institution code "BTO"

Event

Occurrence date	2022-05-26
Date precision	Day
Event date	2022-05-26

Taxonomy

Scientific name	Chroicocephalus ridibundus (Linnaeus, 1766)
Common name	Black-headed Gull
Taxon rank	species
Name match metric	Taxon GUID match The match was based on the supplied taxon concept ID rather than the scientific name.
Species	Chroicocephalus ridibundus
Genus	Chroicocephalus
Family	Laridae
Order	Charadriiformes
Class	Aves
Phylum	Chordata
Kingdom	Animalia
Taxon ID	NHMSYS0020962539
Taxonomic issue	No issues
Habitat taxon	marine\|freshwater
Establishment means taxon	Native
Scientific name authorship	(Linnaeus, 1766)

Geospatial

Country	United Kingdom
State/Province	England
Latitude (WGS84)	53.571372
Longitude (WGS84)	-2.643247
Geodetic datum	EPSG:4326
Coordinate uncertainty in meters	707.1
Bbox	53.566837,-2.650727,53.575906,-2.635764
Grid size in meters	1000
Easting	357000
Northing	408000
Grid reference wkt	POLYGON((-2.65073 53.56684,-2.65073 53.57591,-2.63576 53.57591,-2.63576 53.56684,-2.65073 53.56684))
Grid reference	SD5708

User flagged issues

Data quality tests

Test name	Result
Latitude Longitude calculated from grid reference	Warning
Country inferred from coordinates	Warning
Show/Hide 12 passed properties
Basis of record not supplied	Passed
Basis of record badly formed	Passed
Invalid collection date	Passed
Incomplete collection date	Passed
First of the month	Passed
Data are generalised	Passed
Name not supplied	Passed
Name not recognised	Passed
Zero latitude	Passed
Coordinate uncertainty not specified	Passed
Location not supplied	Passed
Missing geodetic datum	Passed
Show/Hide 3 missing properties
Missing name of person who identified the specimen/observation	Missing
Missing catalogue number	Missing
Decimal coordinates not supplied	Missing
Show/Hide 75 tests that have not been run
Coordinates dont match supplied state	Unchecked (lack of data)
Possible duplicate record	Unchecked (lack of data)
Unparseable verbatim coordinates	Unchecked (lack of data)
Missing georeference date	Unchecked (lack of data)
Kingdom not recognised	Unchecked (lack of data)
Invalid geodetic datum	Unchecked (lack of data)
Higher taxonomy missing	Unchecked (lack of data)
Min and max depth reversed	Unchecked (lack of data)
Homonym issues with supplied name	Unchecked (lack of data)
Occurrence status assumed to be present	Unchecked (lack of data)
Supplied coordinates are zero	Unchecked (lack of data)
Badly formed altitude	Unchecked (lack of data)
Geodetic datum assumed WGS84	Unchecked (lack of data)
Missing an identification qualifier	Unchecked (lack of data)
Depth value supplied in feet	Unchecked (lack of data)
First of the year	Unchecked (lack of data)
No collection date supplied	Unchecked (lack of data)
Missing identification verification status	Unchecked (lack of data)
Day and month transposed	Unchecked (lack of data)
Coordinates centre of country	Unchecked (lack of data)
Taxonomic issue	Unchecked (lack of data)
Longitude is negated	Unchecked (lack of data)
Coordinates derived from verbatim coordinates	Unchecked (lack of data)
Collection code not recognised	Unchecked (lack of data)
Coordinates dont match supplied country	Unchecked (lack of data)
Missing georeferenced protocol	Unchecked (lack of data)
Unrecognised ID verification status	Unchecked (lack of data)
Coordinates converted from UTM	Unchecked (lack of data)
Missing identification references	Unchecked (lack of data)
Unrecognized geodetic datum	Unchecked (lack of data)
Coordinates are out of range for species	Unchecked (lack of data)
Altitude value non-numeric	Unchecked (lack of data)
Missing coordinate precision	Unchecked (lack of data)
unrecognisedOccurrenceStatus	Unchecked (lack of data)
Missing identification date	Unchecked (lack of data)
Coordinate precision and uncertainty transposed	Unchecked (lack of data)
Altitude out of range	Unchecked (lack of data)
Missing georeferenced verification status	Unchecked (lack of data)
Georeferenced after occurrence date	Unchecked (lack of data)
Coordinates converted to WGS84	Unchecked (lack of data)
Collector name unparseable	Unchecked (lack of data)
Identification date before occurrence date	Unchecked (lack of data)
Missing name of person who georeferenced the occurrence	Unchecked (lack of data)
Institution code not recognised	Unchecked (lack of data)
Min and max altitude reversed	Unchecked (lack of data)
Name not in national checklists	Unchecked (lack of data)
Media unrepresentative	Unchecked (lack of data)
Image URL invalid	Unchecked (lack of data)
Habitat incorrect for species	Unchecked (lack of data)
Supplied coordinates centre of state	Unchecked (lack of data)
First of the century	Unchecked (lack of data)
Invalid scientific name	Unchecked (lack of data)
Decimal latitude/longitude conversion failed	Unchecked (lack of data)
Media unrepresentative for taxon	Unchecked (lack of data)
Coordinate uncertainty not valid	Unchecked (lack of data)
Date precision invalid	Unchecked (lack of data)
Coordinates are transposed	Unchecked (lack of data)
Type status not recognised	Unchecked (lack of data)
Unable to convert UTM coordinates	Unchecked (lack of data)
Cultivated / escapee	Unchecked (lack of data)
Missing taxonomic rank	Unchecked (lack of data)
Coordinate precision not valid	Unchecked (lack of data)
Resource taxonomic scope mismatch	Unchecked (lack of data)
Zero longitude	Unchecked (lack of data)
Depth out of range	Unchecked (lack of data)
Supplied country not recognised	Unchecked (lack of data)
Altitude value supplied in feet	Unchecked (lack of data)
Precision / range mismatch	Unchecked (lack of data)
coordinatesNotCentreOfGrid	Unchecked (lack of data)
Suspected outlier	Unchecked (lack of data)
Outside expert range for species	Unchecked (lack of data)
Grid reference calculated using latitude and longitude	Unchecked (lack of data)
Depth value non-numeric	Unchecked (lack of data)
Latitude is negated	Unchecked (lack of data)
Missing georeferenced sources	Unchecked (lack of data)

Additional political boundaries information

England
Districts, Boroughs and Unitary Authorities (England)	Luton (B)
National Character Areas (England)	Chilterns
National Forest Inventory Woodland England 2018	Broadleaved
Network Rail LNW route study area	Network Rail LNW route study area
GB
Districts, Boroughs and Unitary Authorities (Great Britain)	Luton (B)
GB countries	England
Ordnance Survey Grids - 100km	TL
Ordnance Survey Grids - 10km	TL02
Ordnance Survey Grids - 50km	TLSW
Watsonian Vice Counties (GB)	Bedfordshire
Watsonian Vice Counties – 12 mile (GB)	Bedfordshire
Watsonian Vice Counties – 3 mile (GB)	Bedfordshire
UK
Burial grounds	Euxton Parish Church
Countries with sea areas	England
Local Environmental Records Centre Boundaries of the UK	Bedfordshire and Luton Biodiversity Recording and Monitoring Centre
UK, IoM, Channel Islands
Hexagonal grid for reporting - 10km	6601
Square grid for reporting - 10km	28087
World base layer	United Kingdom

Group	Field Name	Original Value	Processed Value
Classification	Species		Chroicocephalus ridibundus
	Name match metric		taxonIdMatch
	Vernacular name		Black-headed Gull
	Scientific name	Chroicocephalus ridibundus	Chroicocephalus ridibundus
	Class		Aves
	Genus id		NHMSYS0020930084
	Taxon concept ID		NHMSYS0020962539
	Kingdom id		NBNSYS0100001342
	Left		101104
	Habitat taxon		marine\|freshwater
	Phylum		Chordata
	Kingdom		Animalia
	Class id		NHMSYS0000841313
	Genus		Chroicocephalus
	Phylum id		NBNSYS0100002380
	Order		Charadriiformes
	Taxon rank		species
	Establishment means taxon		Native
	Order id		NBNSYS0000159655
	Taxonomic issue		["noIssue"]
	Species id		NHMSYS0020962539
	Family id		NBNSYS0000160274
	Taxon ID	NHMSYS0020962539
	Family		Laridae
	Taxon rank id		7000
	Scientific name authorship		(Linnaeus, 1766)
	Right		101104
Event	Date precision		Day
	Event date	2022-05-26	2022-05-26
	Year		2022
	Day		26
	Month		05
Identification	Abcd identification qualifier		Not provided
	Identification qualifier		Not provided
	Identification verification status	Accepted - considered correct	Accepted - considered correct
Occurrence	Occurrence ID	311864903
	Vitality	alive
	Basis of record	HumanObservation	HumanObservation
	Recorded by	Withheld	Withheld
	Rights holder	BTO
	Dataset name	Birds (BTO+partners)
	Institution code	BTO
	Occurrence status	present	present
Attribution	Data resource		Birds (BTO+partners) 2021 - 2023
	Data provider uid		dp29
	License	CC-BY-NC	CC-BY-NC
	Data Resource ID	dr3162
	Data partner		British Trust for Ornithology
Location	Decimal latitude		53.571372
	Bbox		53.566837,-2.650727,53.575906,-2.635764
	Grid size in meters		1000
	Easting		357000
	Coordinate uncertainty in meters		707.1
	Northing		408000
	Grid reference wkt	POLYGON((-2.65073 53.56684,-2.65073 53.57591,-2.63576 53.57591,-2.63576 53.56684,-2.65073 53.56684))	POLYGON((-2.65073 53.56684,-2.65073 53.57591,-2.63576 53.57591,-2.63576 53.56684,-2.65073 53.56684))
	Country		United Kingdom
	Grid reference	SD5708	SD5708
	State province		England
	Decimal longitude		-2.643247
	Geodetic datum		EPSG:4326

Occurrence record: 311864903

Overview

Dataset

Event

Taxonomy

Geospatial

User flagged issues

Data quality tests

Additional political boundaries information

- flagged by