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 2020:
nest 001
nest 002 yPNED
nest 003
nest 005 yPLDP
nest 006 yPESV
nest 008 gXLDT
nest 009
nest 011
nest 012
nest 013
nest 014
nest 015
nest 016
nest 017
nest 018
nest 021
nest 025
nest 027
nest 028
nest 029
nest 031
nest 032
nest 033
nest 034
nest 035
nest 036
nest 037
nest 038
nest 039
pair A
pair B

Caspian Gull cachinnans F|6 1CY-4CY, May 2020 - July 2023, Lelystad-Almere, the Netherlands. Picture: Merijn Loeve, Thijs Horst, Mars Muusse & Eric Roeland.

Black bar tibia ring n[F|6] and metal ring Arnhem NLA 5.552.917, ringed as pullus Larus cachinnans on May 21 2020 at nest 033 in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs.

Recoveries:
27-07-2021 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Eric Roeland
19-04-2022 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Mars Muusse
07-01-2023 London (Tripcock Ness), Greater London, ENGELAND 5.130,00 N 8,00 E colourring read Lauren Evans
26-03-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
04-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
05-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
09-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
03-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
13-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst

ID certain, both Caspian Gull cachinnans, one parent has sub-adult patterns in wing.

date:	egg no:	width (mm)	length (mm)	volume (cm3):	pulli:
07-05-2020	A				wet chick - 1 day old.	1 egg & 2 chicks in the nest, both partners cachinnans.
07-05-2020	B				chick - 3 days old.
07-05-2020	C				hatching egg - tiny hole.
21-05-2020	pulli					Nest empty, two chicks found, ringed n[F|5] & n[F|6].

below: Caspian Gull cachinnans F|6 4CY,July 08 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.

Deceased, after summer storm 'Poly'.

below: Caspian Gull cachinnans F|6 4CY,June 25 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans F|6 4CY,June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

First image: unringed partner in 2023.

below: Caspian Gull cachinnans F|6 4CY, April 09 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.

Breeding at Lelystad colony in 2023: 3 chicks ringed in this nest.

below: Caspian Gull cachinnans F|6 4CY, April 04 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans F|6 3CY, April 11 2022, Lelystad colony, the Netherlands. Picture: Mars Muusse.

below: Caspian Gull cachinnans F|6 2CY, July 27 2021, Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F|6 1CY, May 21 2020, Lelystad, the Netherlands. Picture: Merijn Loeve.