Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Caspian Gull cachinnans 7.3 1CY, May 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Tibia ring R-73 and metal NLA 5.625.200, ringed as pullus Larus cachinnans on May 11 2023 in nest 204 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team.
egg sizes & volume 2023 |
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SPECIES |
NEST |
A_length |
A_width |
A_volume |
B_length |
B_width |
B_volume |
C_length |
C_width |
C_volume |
TOTAL NEST: |
known parents? |
cach x cach |
204-2023 |
72,5 |
52,3 |
99,85 |
70,6 |
52,3 |
97,23 |
67,3 |
51,5 |
89,87 |
286,95 |
same as 2022 |
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ring pulli: May 10 |
laying A egg: April 05 |
hatch A egg: May 03 |
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catch: |
date: |
metal: |
darvic: |
mass: |
wing: |
head+bill: |
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Pullus |
11-5-2023 |
5.625.199 |
r-72 |
- |
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small chick, food is roach |
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Pullus |
11-5-2023 |
5.625.200 |
r-73 |
- |
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small chick |
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Pullus |
27-5-2023 |
5.625.199 |
r-72 |
751 |
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Pullus |
27-5-2023 |
5.625.200 |
r-73 |
455 |
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Pullus |
27-5-2023 |
5.625.261 |
g-8|M |
480 |
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204-2023 |
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dam: |
dam 2 west |
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location: |
Is nest 204-2022. East nest of 203-204. 13 mtr E of lighthouse. |
breeders: |
cach x cach |
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OBSERVATIONS: |
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9-4-2023 |
nest: |
3 eggs measured. No watertest, ring chicks in 1st session. |
26-4-2023 |
nest: |
3 eggs. |
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11-5-2023 |
pulli |
2 chicks ringed, 3rd chick? |
27-5-2023 |
pulli |
1x extra chick ringed; 3x chicks measured. |
below: Caspian Gull cachinnans 7.3 1CY, May 27 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans 7.3 1CY, May 11 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.

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