Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
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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 045
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 045 never found, but positioned at breakwater 2, 7 meters west of coded block 17. Most of April and May, only a guarding bird at blocks (was believed to may belong to nest 17 for some time).
- ID uncertain in season 2021, Caspian Gull type, likely hybrid.
location 2021 |
March 30th, 2021 multiple cachinnans guarding. |
May 13th, 2021 guarding cachinnans and michahellis. |
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partner 1 |
May 13th, 2021: Caspian Gull type. |
May 13th, 2021: Caspian Gull type. |
May 13th, 2021: Caspian Gull type. |
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Visits and data.
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26-04-2021 |
This day old nest 17 becomes new nest 17 with Herring Gull sub-adult. |
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7 meters west of block '17', on blocks at waterfront again the guarding Caspian Gull type (probably hybrid). Partner of the Herring Gull? But never interaction with nest 17. |
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13-05-2021 |
Guarding bird again present. |
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15-05-2021 |
Guarding bird again present. |
08-06-2021 |
The guarding bird does not belong to nest 17. Now 2 Caspian Gull types present which behave as kind of couple. Assigned to new code: nest 45 (although nest never found). |
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Cachinnans type bird may be late breeder or may be only prospector in colony? |
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