| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 | Herring Gull argenteus   9|C 1CY, May 27 2023, Lelystad colony, the Netherlands.  Picture: Thijs Horst.Tibia ring G-9|C and metal NLA 5.625.268, ringed as pullus Larus argentatus  on May 27 2023 in nest r-7R / 244 at Lelystad, the Netherlands. Ringed by  Merijn Loeve / Roland-Jan Buijs ringing team.  Recoveries:27-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
 13-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 30-11-2023 Velsen (Strand Noordpier), Noord-Holland, NL 5.228,00 N 433,00 E colourring read Jan Zorgdrager
 27-01-2024 Katwijk aan Zee (Buitenwatering), Zuid-Holland, NL 5.212,00 N 423,00 E colourring read Annelies Marijnis
 26-03-2024 Katwijk aan Zee (Buitenwatering), Zuid-Holland, NL 5.212,00 N 423,00 E colourring read Annelies Marijnis
 11-04-2024 Katwijk aan Zee (Buitenwatering), Zuid-Holland, NL 5.212,00 N 423,00 E colourring read Annelies Marijnis
 18-04-2024 Katwijk aan Zee (Buitenwatering), Zuid-Holland, NL 5.212,00 N 423,00 E colourring read Annelies Marijnis
 11-01-2025 Velsen (Strand Noordpier), Noord-Holland, NL 5.228,00 N 433,00 E colourring read Fred Cottaar
 
        
        
        
        
        
          | egg sizes & volume 2023 |  |  |  |  |  |  |  |  |  |  |  
          | 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 | 244-2023 | 68,9 | 50,7 | 89,17 | 67,4 | 50,7 | 87,23 | 0 | 0 | 0,00 | 176,41 | NEW NEST |  
          |  |  |  |  |  |  |  |  |  |  |  |  |  |  
          | ring pulli: |  | laying A egg: | hatch A egg |  |  |  |  |  |  |  |  
          |  |  |  |  |  |  |  |  |  |  |  |  |  |  
          |  |  |  |  |  |  |  |  |  |  |  |  |  |  
          | catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | bill: | gonys: | greytone: |  |  |  
          | adult | 03-05-2023 | 6.214.908 | r-7.R | nn | 409 | nn | nn | nn | 5 | female Herring Gull |  
          | pullus | 27-05-2023 | 5.625.268 | g-9|C | 229 |  |  |  |  |  |  |  |  |  
          | pullus | 27-05-2023 | 5.625.284 | g-9|D | 260 |  |  |  |  |  |  |  |  |  
          | pullus | 18-06-2023 | 5.625.284 | g-9|D | 648 | 233 | 100,1 |  |  |  |  |  |  |  
        
        
        
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          | 244-2023 | NEW    NEST |  |  
          | dam: | dam 1 west |  |  
          | location: | on tarmac. Code sprayed    in red. |  
          | breeders: | teus x teus |  |  
          | OBSERVATIONS: |  |  |  
          | 22-04-2023 | nest: | 2 eieren in nest |  
          | 03-05-2023 | adult: | Trapped female teus at    nest: r-7.R |  
          | 27-05-2023 | pulli: | 2x chicks ringed and    measured. |  
          | 18-06-2023 | pulli: | control of g-9|D. |  below: Herring Gull argenteus  9|C 1CY, May 27 2023, Lelystad colony, the Netherlands.  Picture: Thijs Horst.
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