Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Project Info
Location Lelystad
Location De Kreupel
2019 Lelystad
2020 Lelystad
2021 Lelystad
Coded nests Lelystad
2020 De Kreupel
2021 De Kreupel
Coded nests De Kreupel
All ring codes 2020
All ring codes 2021

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

Cachinnans - nest Lelystad 057 y[P:A02]

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 057 positioned at breakwater dam 2, close to nest 11, marked with red flag. Many Spoonbills breeding in this section.
• ID certain: partners are cachinnans, one bird is male 5CY y[P:A02] and one is female near-adult (5CY?) unringed cachinnans.

Metal ring PLG DN34502 and yellow P:A02, ringed as pullus on May 25 2017 in a mixed Caspian Gull colony "Larus cachinnans kolonia" with cachinnans dominance,
at ZB. KOZIELNO, PACZKÓW, POLAND, by ringers Jacek Betleja & Mateusz Ledwoń. In all respects, y[P:A02] is cachinnans, no indication for hybrid.

location	March 30th, 2021.	April 24th, 2021.
eggs	April 24th, 2021: using Spoonbill nest.	April 24th, 2021: 3 eggs clutch.	.
partner 1	March 30th, 2021: 5CY y[P:A02].	March 23rd, 2021: easy on bread.	.
	March 30th, 2021.	March 30th, 2021.
partner 2	March 30th, 2021: some black on primary coverts.	March 30th, 2021.

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