Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

Lesser Black-backed Gull intermedius J221N 1CY-3CY, November 2015 - April 2016, November 2016 & April 2017, Matosinhos, Portugal. Picture: José Marques.

Please visit José's FLICKR PHOTO STREAM and also José Blog "Seabirds Portugal".

OBSERVATION REPORT
Color ring - N[J221N]
Metalic ring - 4279121
EURING code- 05910 - www.cr-birding.org/node/1145
SPECIES
Type of bird - Larus fuscus
Age & Sexe - Juvenile - unknown
RINGS
Right leg (tarsus)-Black ring with a white 5 alpha numeric code
Left leg (tarsus)-Metallic ring
Ringer - Carsten Lome - Stavanger Museum
Age at first ring- Pullus - Date 2015.06.30
Place where ringed- Revsholmen, Arendal, Aust-Agder, Norway
∞
OBSERVATION
Date of the sighting - 11.11.2016 - Time - morning
my sightings/2016: 13 - total of my sightings: 18
Place - Matosinhos beach, Matosinhos, Portugal
Coordinates: - 41.176885 – 8.693382
∞
LIFE HISTORY
Date - Location - Observer
30/06/2015 - Revsholmen, Arendal, Aust-Agder, Norway - Carsten Lome
20/11/2015 - Leixões Harbour, Matosinhos, Portugal – José Marques
04/12/2015 - Leixões Harbour, Matosinhos, Portugal – José Marques
07/12/2015 - Leixões Harbour, Matosinhos, Portugal – José Marques
11/12/2015 - Matosinhos beach, Matosinhos, Portugal – José Marques
29/12/2015 - Matosinhos beach, Matosinhos, Portugal – José Marques
31/12/2015 - Matosinhos beach, Matosinhos, Portugal – Luis Mota
16/01/2016 - Matosinhos beach, Matosinhos, Portugal – José Marques
24/01/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
26/01/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
31/01/2016 - Praia de Angeiras Norte, Matosinhos, Portugal-Luis Mota
05/02/2016 – Praia de Angeiras Norte, Matosinbos, Portugal – Inocêncio Oliveira
16/02/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
19/02/2016 – Douro River Estuary, V.N.Gaia, Portugal – Inocêncio Oliveira & José Marques
28/02/2016 – Matosinhos, Portugal – Luís Mota
06/03/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
25/03/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
05/04/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
06/04/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
22/04/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
23/04/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
03/11/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
11/11/2016 - Matosinhos beach, Matosinhos, Portugal-José Marques
11/12/2016- Praia da Aguda,Vila Nova de Gaia,Portugal – Luis Mota
10/04/2017 - Matosinhos beach, Matosinhos, Portugal-José Marques

below: Lesser Black-backed Gull intermedius J221N 3CY, April 10 2017, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.

Several coverts replaced again last winter. Tail all white.

below: Lesser Black-backed Gull intermedius J221N 2CY, November 11 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.

P10 fully grown. Note pattern on coverts when compared to April.

below: Lesser Black-backed Gull intermedius J221N 2CY, April 23 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.

below: Lesser Black-backed Gull intermedius J221N 2CY, April 22 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.

Extensive post-juvenile moult in late winter (new coverts are relatively fresh and with buffish and grey tones still present, not bleached and faded, moulted in not too long ago. Note also several missing LC.

below: Lesser Black-backed Gull intermedius J221N 2CY, April 06 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.

below: Lesser Black-backed Gull intermedius J221N 2CY, April 05 2016, Matosinhos Beach, Matosinhos, Portugal. Picture: José Marques.

below: Lesser Black-backed Gull intermedius J221N 2CY, March 25 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

Active post-juvenile moult in late winter.

below: Lesser Black-backed Gull intermedius J221N 2CY, February 16 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

Active wing-covert moult.

below: Lesser Black-backed Gull intermedius J221N 2CY, January 26 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

below: Lesser Black-backed Gull intermedius J221N 2CY, January 24 2016, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

Active wing-covert moult just started.

below: Lesser Black-backed Gull intermedius J221N 1CY, December 29 2015, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

Wing-covert moult not started yet.

below: Lesser Black-backed Gull intermedius J221N 1CY, December 11 2015, Matosinhos beach, Matosinhos, Portugal. Picture: José Marques.

Active moult in scaps.

below: Lesser Black-backed Gull intermedius J221N 1CY, December 07 2015, Leixões harbor, Matosinhos, Portugal. Picture: José Marques.

Active moult in scaps just started.

below: Lesser Black-backed Gull intermedius J221N 1CY, December 04 2015, Leixões harbor, Matosinhos, Portugal. Picture: José Marques.

Active moult in scaps just started.

below: Lesser Black-backed Gull intermedius J221N 1CY, November 20 2015, Leixões harbor, Matosinhos, Portugal. Picture: José Marques.