Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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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

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

Nests at Lelystad 2022
nest y-PNED
nest y-PHSV / r-CG
nest y-P:U60
nest y-X56A
nest y-X71A
nest y-X540
nest y-XCHP
nest w-327:U
nest n-F|N
nest r-6A
nest r-6B
nest r-6C
nest r-CS
nest r-FC
nest w-8Z
nest zy-MT
nest 003
nest 011
nest 012
nest 014
nest 015
nest 017
nest 017B
nest 018
nest 019
nest 021
nest 026
nest 034
nest 035
nest 038
nest 040
nest 044
nest 046
nest 048
nest 053
nest 055
nest 058
nest 060
nest 061Z
nest 062
nest 063
nest 107Z
nest 109
nest 111
nest 112
nest 113
nest 117Z
nest 118Z
nest 123Z
nest 124Z
nest 125Z
nest 126Z
nest 127Z
nest 128Z
nest 129Z
nest 131Z
nest 132 YLG
nest 133
nest 134
nest 135
nest 136
nest 137
nest 138
nest 139
nest 143Z
nest 203
nest 204
nest 207
nest 222Z
nest 227
nest 228Z
nest 229
nest 230Z
nest 231
nest 240Z
nest 244
nest 245Z

Lelystad 2023:
nest y-PNED
nest y-P:U60
nest y-X56A
nest y-X71A
nest y-X60J
nest y-XCHP
nest w-327:U
nest n-F|6
nest n-F|8
nest n-F|+
nest n-F|N
nest r-6.B
nest r-7.P
nest r-C.G
nest w-8Z
nest 003
nest 006
nest 013
nest 014
nest 015
nest 017
nest 017B
nest 018
nest 019
nest 021
nest 026
nest 033
nest 034
nest 035
nest 038
nest 040
nest 044
nest 046
nest 048
nest 053
nest 055
nest 060
nest 061Z
nest 062
nest 063
nest 107Z
nest 108
nest 109
nest 111
nest 112
nest 127Z
nest 131Z
nest 132 YLG
nest 135
nest 139
nest 147Z
nest 163
nest 167
nest 168
nest 204
nest 206
nest 207
nest 223
nest 227
nest 230Z
nest 231
nest 244Z
nest 245Z
nest 248
nest 251
nest 252
nest 253
nest 254
nest 255Z
nest 256Z
nest 262

Cachinnans - nest Lelystad 018

General remarks:

• Eggs: Volume measured by Stonehouse (1964) and Spaans & Spaans (1975), which make comparison possible with data from Texel (Camphuysen pers comm 16.04.2020).
• Nest 018 positioned at breakwater 2, behind coded block "18" and about 25 meters west of nest 15 (also code on block "15").
  In 2022 nest temporarily coded as "226".
  In 2023 nest temporarily coded as "nest with blue foam board".
• ID uncertain in 2020: male is Caspian Gull cachinnans, but partner not known.
• ID certain in 2021: same male Caspian Gull cachinnans as previous year. Partner in 2021 is female Herring Gull (type).
• ID certain in 2022: same male Caspian Gull cachinnans as previous year. Partner again is female Herring Gull (type).
• ID certain in 2023: male Caspian Gull cachinnans. Partner is female Herring Gull (type). Late nest in 2023, eggs measured but no chicks ringed.

location	March 30th, 2021: nest location.	April 29th, 2022: mixed couple.	April 9th, 2023: nest location.
eggs	Eggs April 15th, 2020: 1 egg in nest.	Eggs April 27th, 2020: 3 eggs, full clutch.	April 29th, 2022: 3 eggs, full clutch.
partner 1	May 7th, 2020: male cachinnans 5CY?	May 7th, 2020: male cachinnans 5CY?	April 26th, 2021.
partner 1	April 26th, 2021.	April 26th, 2021.	April 26th, 2021.
	June 8th, 2021.	April 29th, 2022: Caspian Gull male.	.
partner 2	May 6th, 2021: Herring Gull (type).	.	.
partner 2	April 29th, 2022: Herring Gull female.	April 29th, 2022: Herring Gull female.	April 29th, 2022: Herring Gull female.

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