Central Canaries (
currently classified as atlantis)Visit dates, locations, numbers seen with % juvenile/first-years in brackets.
20th-26th December 1996 Tenerife: Los Cristianos 100 (9), Garachico 45 (10).
4th-18th August 1998 Tenerife: Campo de Golf, Playa de las Americas 800 (12), Los Gigantes 12 (0), Garachico 2 (0), Las Galletas 20 (50), Santa Cruz 12 (8); Gomera: San Sebastian 13 (8).
28th July-10th August 2000 Tenerife: Los Cristianos 43 (20), Campo de Golf, Playa de las Americas 90 (9), Los Gigantes 10 (20), Garachico 13 (8), Las Galletas 30 (73), El Médano 20 (80), Punta del Hildago 10 (50); Gomera: San Sebastian 12 (8).
Western Canaries (atlantis)
5th-9th August 2000 La Palma: Santa Cruz 31(26); El Hierro: Puerto de la Estaca 3(33).
Eastern Canaries (atlantis)
13th-20th August 1992 Lanzarote: Puerto del Carmen 120 (33), Arrecife 270 (5), Orzola 80 (31). Graciosa: Caleta del Sebo 220 (25).
16th August 1998 Gran Canaria: Agaete 6(17).
7th-14th April 1999 Fuerteventura: Caleta de Fustes 89 (37), Gran Tarajal 26 (18), La Lajita 24 (22), Morro del Jable 30 (17), Corralejo 52 (14);
14th-20th May 2000 Gran Canaria: Las Palmas 65(34), Puerto Rico 80(0), Puerto de Mogán 30(7).
23rd-30th September 2000: Gran Canaria: Las Palmas 234(14), Puerto de Mogán 35(23); Fuerteventura: Morro Jable 44(18).
South Morocco (michahellis)
12th-18th April 1998 Agadir 400(65), Oued Souss 80 (81), Essaouira 20 (30).
23rd-30th April 2000 Agadir 260(35), Oued Souss 440(70), Essaouira 600(17).
North-West Morocco (michahellis)
20th-27th August 1994 Asilah 40(58).
Madeira (atlantis)
25th-31st March 2002 Funchal 50(52), Camara de Lobos 40(65), Ponta de Cruz 140(29), Ribeira Brava 4(0), Porto Moniz 18(0), Porto Santo (Porto de Abrigo) 40(40).
North Morocco (michahellis)
10th-17th August 1993 Tanger 106 (41), Cap Spartel 25 (44).
27th August-2nd September 1994 Tanger 245 (18), Cap Spartel 8 (25).
20th August 2001 Tanger 75(40).
East Andalucia (Spain) (michahellis)
26th-31st May 1996 Andalucia: Nerja 40 (50).
Eastern Straits of Gibraltar (Spain)
(michahellis)17th August 2001: Andalucia: Estepona 145(62).
Gibraltar/La Lines (michahellis)
22nd August 2001 Gibraltar 205(3), La Linea 25 (80).
Western Straits of Gibraltar (Spain) (michahellis)
15th-20th August 2001: Andalucia: Tarifa 220(76).
West Andalucia (Spain) (michahellis)
13th August 2001 Cádiz 96(48), Conil 14(0), Barbate 3(0).
South Portugal (michahellis)
25th-31st March 1999 Algarve: Faro 260 (58).
South-west Portugal (‘lusitanius’)
13th-16th May 1995: Lisbon 35 (89).
27th-29th March 1999: Setúbal 52 (13).
North Portugal/North-west Spain ('lusitanius')
29th March-4thApril 2001 Porto/Matosinhos 670(49), Minho 116(56).
North Spain (‘cantabricans’)
1st-9th August 1990 Noja 135 (19), Quejo 25 (20), Santander 60 (18), Santoña 20(8).
South-west France (argenteus - Herring Gull)
11th August 1991 Isle d’Oléron (Boyardville) 210 (24).
South-west France (michahellis - Mediterranean Yellow-legged Gull)
7th-13th August 1991 Royan 200(15); Isle d’Oléron 50 (5).