Updates to Site
1st February 2000: launch of site
22nd February 2000: addition of photographs mainly immatures and Agadir; also notes on juveniles/first-years
22nd March 2000: revised notes on adults (v2)
25th March 2000: addition of photographs and notes on Mediterranean Yellow-legged Gulls in south-west France
25th March 2000: re-organization of entry web page
10th April 2000: addition of photographs and notes on Cantabrican Atlantic Yellow-legged Gulls in northern Spain.
12th April 2000: addition of photographs by Tom Cadwallender on Intergrade Atlantic-Mediterranean Yellow-legged Gulls in Gibraltar.
26th July 2000: addition of photographs on Herring Gulls of south-west France.
27th July 2000: addition of photographs on Herring Gulls of north-west France.
28th July 2000: addition of photographs on Intergrade Atlantic-Mediterranean Yellow-legged Gulls in Andalucia.
19th August 2000: addition of photograph of possible Cantabrican Atlantic Yellow-legged Gull in south-west France.
21st August 2000: addition of three photographs of adults from Lanzarote/Graciosa and four photographs of first-summer/second-winters (under Second-years) from Lanzarote.
25th August-3rd September 2000: addition of photographs of adults, second-summer and first-summer in colony on roof at Amadil Beach Hotel, Agadir, Morocco.
3rd September 2000: revision of notes on first-year Dark (Southern) Atlantic Yellow-legged Gulls.
6th December 2000: revised notes on adult Dark (Southern) Atlantic Yellow-legged Gulls; addition of photographs on intergrades in Tangier.
1st January 2001: addition of photographs and notes of strange adult 'YLG' at Tangier (see Intergrade pages).
12th January 2001: addition of photographs of adults and first-summer from Essaouira, Morocco.
9th February 2001: addition of notes on second-year Dark (Southern) Atlantic Yellow-legged Gulls.
11th March 2001: addition of notes on second-year Cantabrican Atlantic Yellow-legged Gulls.
28th March 2001: addition of notes on third-year Dark (Southern) Atlantic Yellow-legged Gulls.
21st April 2001: addition of notes on third-year Cantabrican Atlantic Yellow-legged Gulls.
9th June 2001: addition of photographs from the Canaries (Tenerife, El Hierro, La Palma) from August 2000 for adults, first-summers and juveniles.
10th June 2001: revised notes on Dark (Southern) Atlantic Yellow-legged Gull adults to include western Canary forms.
25th July 2001: strange gull at Tangier is perhaps hybrid Atlantic Iberian Yellow-legged Gull x Lesser Black-backed Gull (see Intergrades).
September 24th 2001: added more photographs and accounts of west Portugal birds (from Porto/Matosinhos/Minho area), considering these with north-west Spain birds as a cline between the Dark (Southern) form and Cantabrican form.
September 30th 2001: added recent photographs from Tanger, Morocco, and updated comments on this form
October 19th 2001: added presentation Strange World of Gull Identification
October 19th 2001: added paper Characteristics of Atlantic Yellow-legged Gulls
November 21st 2001: added photographs, notes and comments from Estepona, east Andalucia, in the Atlantic-Mediterranean intersection area.
December 2nd 2001: added recent photographs from Gibraltar/La Linea, and updated comments on this form.
December 22nd 2001: added photographs and comments on Herring Gulls in South west England.
December 27th 2001: added to paper: a) detailed statistics for first-year Atlantic YLG (top level); b) identifying characteristics of first-year Atlantic YLG (under Discussion).
January 4th 2002: added to Atlantic-Mediterranean Intersection page and to paper a Map of Atlantic-Mediterranean Intersection Zone.
February 17th 2002: added photographs from Conil, south-west Spain, showing a direct comparison of Dark (Southern) Atlantic and Mediterranean Yellow-legged Gull. See section 2 below.
March 9th 2002: added photographs and notes on Mediterranean Yellow-legged Gulls at Conil in west Andalucia
March 16th 2002: added photographs on Dark (Southern) Atlantic Yellow-legged Gulls (adult, first-summer, juvenile) at Cádiz in west Andalucia
April 8th 2002: added photographs and notes of Yellow-legged Gulls at Tarifa to Atlantic-Mediterranean Intersection page (concludes reports on August 2001 visit to this area).
April 24th 2002: added observations on convergence of genetic and morphological studies on atlantis (section 6).
July 8th 2002: added photographs and comments on Dark (Southern) Atlantic Yellow-legged Gulls in Madeira (section 1).
September 1st 2002: added paper and presentation Yellow-legged Gulls in the Atlantic-Mediterranean Intersection Zone presented at 6th International Gull Meeting, Lammi, Finland, 8th-11th August 2002.
September 12th 2002: added updates to locations visited, descriptions and notes, statistics and references in paper Characteristics of Atlantic Yellow-legged Gulls
September 27th 2002: added photographs of Herring Gulls in south-west England together with tables comparing argenteus to the Cantabrican Atlantic Yellow-legged Gull
October 10th-27th 2002: added more photographs of adult, third-year and second-year Yellow-legged Gulls from Gran Canaria and Fuerteventura in September 2000
October 18th 2002: added Dwight's original text on atlantis
November 22nd 2002: added comments on Philippe Dubois' paper in Birding World 2001
November 28th 2002: added Stegmann's original text on atlantis
December 1st 2002: added photographs from Estepona (June 2002) and updated notes on this form (Atlantic-Mediterranean Intersection zone).
December 8th 2002: added photographs from Tarifa (June 2002) and updated notes on this form (Atlantic-Mediterranean Intersection zone).
December 18th 2002: added flock and group photographs from Conil (June 2002) (Comparison Atlantic and Mediterranean forms).
December 27th 2002: added photographs and comments on Mediterranean Yellow-legged Gulls in south west Spain (Med YLG in SW Spain).
December 28th 2002: YLG from south Portugal and south west Spain now grouped with those from west Portugal and north west Spain as Iberian Atlantic Yellow-legged Gull (Iberian atlantis). Added photographs and notes from Cádiz in June 2002 to section on Iberian atlantis.
December 31st 2002: added pairwise statistical analysis of wingtip patterns in atlantis and michahellis and map showing distribution of main forms
January 1st 2003: added comparison of biometrics for atlantis and michahellis
January 2nd 2003: added updated identification criteria for atlantis from graellsii, argenteus, michahellis and cachinnans
January 6th 2003: added Isenmann's original text on michahellis
January 16th 2003: added presentation given at Natural History Society of Northumbria in January 2003
January 18th 2003: added Bannerman's original texts on atlantis
January 21st 2003: added calls of Herring Gulls argenteus from south west England
January 23rd 2003: added photographs and notes of Iberian atlantis at Barbate cliff colony, west Andalucia in June 2002
January 29th 2003: updated detailed statistics for adults of all Atlantic forms (Overview)
February 1st 2003: added Dwight's original text on michahellis
February 9th 2003: added further photographs of first-years from Tenerife taken August 2000 (First-years)
March 17th 2003: added comparison of mantle shades from various sources
March 24th 2003: added compiled information on Azorean atlantis and comparison with other forms
June 10th 2003: annotated photographs of Cantabrican from Spain in 1990
June 21st 2003: added photographs of Cantabrican with annotations from south-west France in 2002
July 13th 2003: annotated photographs of Mediterranean michahellis from SW France in 1991
July 14th 2003: added summary of sympatric/allopatric breeding of Atlantic Yellow-legged Gulls