Lesser Black-backed Gull (graellsii & intermedius)
(last update: May 17 2015)
lbbg 1cy May
lbbg 1cy June
lbbg 1cy July
lbbg 1cy August
lbbg 1cy September
lbbg 1cy October
lbbg 1cy November
lbbg 1cy December
lbbg 2cy January
lbbg 2cy February
lbbg 2cy Mar-April
lbbg 2cy May
lbbg 2cy June
lbbg 2cy July
lbbg 2cy August
lbbg 2cy September
lbbg 2cy October
lbbg 2cy Nov - Dec
lbbg 3cy Jan-April
lbbg 3cy May
lbbg 3cy June
lbbg 3cy July
lbbg 3cy August
lbbg 3cy September
lbbg 3cy October
lbbg 3cy Nov - Dec
lbbg sub-ad Jan-April
lbbg sub-ad May
lbbg sub-ad June
lbbg sub-ad July
lbbg sub-ad Aug
lbbg sub-ad Sept
lbbg sub-ad Oct
lbbg sub-ad Nov
lbbg sub-ad Dec
lbbg adult January
lbbg adult February
lbbg adult March
lbbg adult April
lbbg adult May
lbbg adult June
lbbg adult July
lbbg adult August
lbbg adult September
lbbg adult October
lbbg adult Nov - Dec
Lesser Black-backed Gull graellsii 2U 3CY, June 01 2017, Utrecht, the Netherlands.
Tibia code N/G-2U and metal ring NLA Arnhem 5.509.323. Ringed as pullus on July 09 2015 at Europoort (Dintelhaven), the Netherlands (NL 5157.00 N 406.00 E), by ringer Hans Keijser.
Recoveries:
30-3-2016 Safi (Haven), Safi, MAROKKO 3.218,00 N 914,00 W colourring read Ruth Garcia Gorria
1-6-2017 Utrecht (Papendorp), Utrecht, NL 5.204,00 N 505,00 E colourring read Mars Muusse
3CY graellsii showing arrested moult after return from Morocco, Africa. Advanced moult in coverts and tertials, and all rectrices immaculate white. Secondaries replaced last winter as well, now adult-like 3rd gen (except for single feathers). Moult continued then in the primaries, with P1-P5 replaced in right wing (P1-P4 in left wing). Then moult was arrested to migrate north again.
