| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 Nests at Lelystad 2024:   | Caspian Gull cachinnans  C|0 1CY, May  31 2024, Lelystad colony, the Netherlands.  Picture:  Thijs Horst & Merijn Loeve.
        
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            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia ring G-C|0 and metal NLA 5.631.126, ringed as pullus Larus cachinnans on May 31 2024 in nest y-P:AM0 g-A|E-2024 at Lelystad, the Netherlands. Ringed by Merijn Loeve (Roland-Jan Buijs ringing team). Recoveries:18-06-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E found dead T. Horst & M. Muusse
 Visits and       data 2024.       
        
        
        
          | NEST code | parent 1 | parent  2 | A_length | A_width | A_volume | B_length | B_width | B_volume | C_length | C_width | C_volume | TOTAL    NEST: |  
          | P:AM0 & g-A|E | cach | cach | 73,6 | 49 | 88,98 | 70 | 50,3 | 89,17 | 68,5 | 48,5 | 81,13 | 259,28 |  |  
          | 2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments |  |  |  |  |  |  
          |  | 3 | 10-4-2024 | 6-5-2024 |  |  |  |  |  
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          | dam: | dam 1 west |  |  |  |  |  |  |  |  |  |  |  |  
          | location: | Is nest 63-2021/2023. The    west nest in the complex. |  |  |  |  |  |  |  |  
          | parents? | y-P:AM0 is new breeder. |  |  |  |  |  |  |  
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          | ring pulli: | 11-May |  |  |  |  |  |  |  |  |  |  |  |  |  
          | date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |  26-04-2024 | g-A|E | .5625294 | nest PAM0 | PONT | F | >4CY | 443 | 1075 | 126,3 | 53,0 | 66,7 | 18,1 | 5 | 
    | 31-05-2024 | g-C|Z | .5631125 | y-P:AM0 g-A|E | PONT |  | 1CY |  |  |  |  |  |  |  |  
    | 31-05-2024 | g-C|0 | .5631126 | y-P:AM0  g-A|E | PONT |  | 1CY |  |  |  |  |  |  |  |  
    | 31-05-2024 | g-C|1 | .5631127 | y-P:AM0  g-A|E | PONT |  | 1CY |  |  |  |  |  |  |  |  
    | 04-06-2024 | g-C|Z | .5631125 | y-P:AM0 g-A|E | PONT |  | 1CY | 220 | 809 | 105,7 |  |  |  |  |  
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    | OBSERVATIONS: |  |  |  |  |  |  |  |  |  |  |  |  |  
    | 08-03-2024 | adult: | y-PAM0. |  
    | 31-03-2024 | adults: | both parents present. |  
    | 12-04-2024 | eggs: | 1 egg, measured. |  
    | 21-04-2024 | eggs: | 3, measured. |  
    |  | nest: | cluster again: 60, 69,    PAM0, n-F|+, and 2 Herrings to follow soon. |  
    | 26-04-2024 | adult: | adult female trapped at nest, now g-A|E. |  
    |  | food: | Perch vomit when adult trapped. |  
    | 02-05-2024 | eggs: | 3 eggs. |  
    | 05-05-2024 | nest: | 3 eggs, not measured. |  
    | 31-05-2024 | chicks: | 3x ringed. |  
    | 04-06-2024 | chick: | g-C|Z present. measured. |  
    | 18-06-2024 | chicks: | g-C|0 & g-C|1 dead. |  
    |  | chick: | CONTROLL: g-C|Z. |  
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  below: Caspian Gull cachinnans  C|0 1CY, June 18 2024, Lelystad colony, the Netherlands.  Picture: Thijs Horst & Mars Muusse.Dead, >7 days. 
 below: Caspian Gull cachinnans  C|0 1CY, May 31 2024, Lelystad colony, the Netherlands.  Picture: Thijs Horst & Merijn Loeve.
        
        
        
          | 31-05-2024 | g-C|Z | .5631125 | y-P:AM0 / g-A|E | PONT |  | 1CY |  
          | 31-05-2024 | g-C|0 | .5631126 | y-P:AM0 / g-A|E | PONT |  | 1CY |  
          | 31-05-2024 | g-C|1 | .5631127 | y-P:AM0 / g-A|E | PONT |  | 1CY |  
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