Larus cachinnans in the Netherlands

(last update: August 16, 2020)

Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse

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Lelystad 2021
nest y-PNED
nest y-PLDP
nest y-PHSV
nest y-P:A02
nest y-P:U60
nest zy-MT
nest r-FB
nest r-FC
nest 001
nest 003
nest 006
nest 011
nest 012
nest 013
nest 014
nest 015
nest 016B
nest 017
nest 018
nest 019
nest 021
nest 034
nest 035
nest 038
nest 040
nest 041
nest 042
nest 044
nest 045
nest 046
nest 047
nest 048
nest 053
nest 055
nest 056
nest 058
nest 060
nest 062
nest 063
nest 065
nest 066
nest 067
nest 072

Hybrid Herring Gull argenteus x Caspian Gull cachinnans F|6 1CY & 3CY, May 2021 & May 2023, Lelystad & Callantsoog, the Netherlands.

Tibia B-F|6 and metal Arnhem NLA 5.559.420, ringed as pullus F1 hybrid Herring Gull argenteus x Caspian Gull Larus cachinnans on May 28 2021 at nest 40 in colony Lelystad, the Netherlands.
Father is Caspian Gull and mother is Herring Gull.

Recoveries:
09-01-2023 Thamesmead (River Thames), Greater London, ENGELAND 5.130,00 N 6,00 E colourring read Richard Bonser
26-02-2023 Thamesmead (River Thames), Greater London, ENGELAND 5.130,00 N 6,00 E colourring read Richard Bonser
20-05-2023 Callantsoog (Strand), Noord-Holland, NL 5.250,00 N 441,00 E colourring read Thijs Horst
21-01-2024 Thamesmead (River Thames), Greater London, ENGELAND 5.130,00 N 6,00 E colourring read Richard Bonser

Visits and data:

date:              
06-05-2021 Still no visits this season, due to presence of many Spoonbills.
   
13-05-2021 No visit. Camilla is trapping a Spoonbill at dam 1.
   
15-05-2021 Still no visits this season, due to presence of many Spoonbills.
   
28-05-2021 The only real visit this season: 2 pulli in nest.
  metal ring plastic: head+bill:  
pullus .5559420 b-F|6 64,2 F1 hybride argentatus x cachinnans
pullus .5559421 b-F|7 66,6 F1 hybride argentatus x cachinnans
   
08-06-2021 Herring Gull at this location and several alrming Caspian Gulls in the air, probably including partner.

below: hybrid Herring Gull argenteus x Caspian Gull cachinnans F|6 3CY, May 20 2023, Callantsoog, the Netherlands. Picture: Mars Muusse.

below: hybrid Herring Gull argenteus x Caspian Gull cachinnans F|6 1CY, May 28 2021, Lelystad, the Netherlands. Picture: Albert de Jong, Roland-Jan Buijs & Mars Muusse.