Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Lesser Black-backed Gull graellsii 9|F 1CY, May 27 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Tibia ring G-9|F and metal NLA 5.625.282, ringed as pullus Larus fuscus on May 27 2023 in nest 061Z 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? |
teus x teus |
61Z |
67,3 |
49 |
81,36 |
-- |
-- |
-- |
-- |
-- |
-- |
81,36 |
same as 2022 |
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ring pulli: nn |
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laying A egg: nn |
hatch A egg: nn |
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catch: |
date: |
metal: |
darvic: |
mass: |
wing: |
head+bill: |
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Pullus |
27-5-2023 |
5.625.280 |
g-8|+ |
210 |
-- |
teus |
in cluster of nests. |
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Pullus |
27-5-2023 |
5.625.282 |
g-9|F |
218 |
-- |
KMM |
Observed it with 2 LBBG parents (positive interaction). |
Pullus |
27-5-2023 |
5.625.283 |
g-9|E |
230 |
-- |
teus |
in cluster of nests. |
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61Z |
Herring Gulls |
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dam: |
dam 1 west |
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location: |
Is in front of n[F|N]. Same as 61-2023. |
breeders: |
teus x teus |
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OBSERVATIONS: |
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22-4-2023 |
nest |
1 egg. |
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27-4-2023 |
adult: |
2x Herring Gull partners. |
13-5-2023 |
adult: |
2x Herring Gull partners. |
27-5-2023 |
pulli: |
2x teus pulli ringed. Later a 3rd (g-9|F) pullus ringed at this very same location, believed to belong to 61 as well. But from boat we observed it with LBBG parents (positive interaction). |
below: Lesser Black-backed Gull graellsii 9|F 1CY, May 27 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

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