Larus cachinnans in the Netherlands

(last update: August 16, 2020)

Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse

Home

Herring Gull argentatus K.5 1CY, May 14 2021, De Kreupel - M, the Netherlands. Picture: Leon Kelder.

Red tibia ring r[K.5] and metal NLA 5.556.739, ringed as pullus Larus argentatus on May 14 2021 at nest M06 21 in colony De Kreupel, the Netherlands. Ringer: Leon Kelder.
ID is uncertain: both parents are unknown. Preliminary ID based on sandy plumage of pulli.

Recoveries:
30-10-2021 Oudeschild (Haven), Texel, NL 5.302,00 N 451,00 E colourring read Frank van der Meer
03-01-2022 Oudeschild (Haven), Texel, NL 5.302,00 N 451,00 E colourring read Mardik Leopold
30-05-2022 Hoek van Holland (Koningin Emmaboulevard), Zuid-Holland, NL 5.158,00 N 407,00 E colourring read Ted van der Knaap
09-02-2023 Katwijk aan Zee (Strand), Zuid-Holland, NL 5.213,00 N 424,00 E colourring read Annelies Marijnis
22-02-2023 Katwijk aan Zee (Strand), Zuid-Holland, NL 5.213,00 N 424,00 E colourring read Annelies Marijnis
20-03-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder

Date: details:          
23-4-2021 3 eggs in nest. egg no: width (mm): length (mm): volume (cm3): 
  A egg 67.9 49.5
  B egg 65.1 48.8
  C egg 71.4 50.2    
Attempt to trap breeding adult. Failed.          
           
14-5-2021 2 pulli & 1 hatching egg in nest. metal: tibia: mass (gr): head + bill: tarsus:
https://waarneming.nl/observation/214664240/ NLA 5.556.739 r-K.5 66 49.0 28.9
  NLA 5.556.740 r-K.6 72 49.8 28.2
         
20-5-2021 1 pullus present. metal: tibia: mass (gr): head + bill: tarsus:
Prey: Rounded Goby 1x; Black-headed Gull pull 2x NLA 5.556.739 r-K.5 153 60.8  
https://waarneming.nl/observation/214907849/          
           
28-5-2021 No chicks present. Many prey left-overs.          
https://waarneming.nl/observation/215271016/          
             
11-6-2021 Camera trap: 1 pullus & 1 adult. https://waarneming.nl/observation/224226687/