Lesser Black-backed Gull
(Larus fuscus)
 Gaviota sombría  Gavià fosc  Kaio iluna  Gaivota Escura  Lesser Black-backed Gull
Observations Description Bird voice



Order Charadriiformes
Family Laridae
EURING Code 5910
6D code LARFUS
Category A
Rarity P , C


DATA COLLECTED
Observations 475
Nº de individuos 22704
Autonomus regions 14
Provinces 29
10x10 squares 128
Observers 26



PHENOLOGY


DATA BY...


Mes Species Observations Individuals UTMs 10x10 Observers
January 1 75 5227 35 14
February 1 88 5787 37 12
March 1 59 518 31 11
April 1 24 369 13 7
May 1 11 306 7 5
June 1 2 302 2 2
July 1 6 34 5 4
August 1 29 384 14 12
September 1 20 188 11 7
October 1 29 1207 17 9
November 1 57 4853 32 12
December 1 75 3529 37 13














REPRODUCTION




Reproducción Species Observations Individuals UTMs 10x10 Observers
desconocido 1 153 10485 79 21
reproducción probable 1 1 30 1 1
reproducción posible 1 2 12 2 2
reproducción segura 1 2 40 2 1
migración 1 6 101 6 4
invernada 1 53 1007 17 5




Sexo Species Observations Individuals UTMs 10x10 Observers
desconocido 1 77 5439 4 3
machos y hembras 1 1 1000 1 1
macho 1 2 4 1 1




Edad Species Observations Individuals UTMs 10x10 Observers
desconocido 1 1 20 1 1
juvenil 1 13 54 3 3
adulto 1 83 5616 17 9






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