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

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Caspian Gull cachinnans B.A 1CY, June 11 2021, De Kreupel - L, the Netherlands. Picture: Leon Kelder.

Red tibia ring r[B.A], ringed as pullus Larus cachinnans on June 11 2021 at nest L07 21 in colony De Kreupel, the Netherlands.
ID is uncertain: both parents are unknown.

Dark funk bird.

Date: details:          
11-6-2021 2 pulli in nest. metal: tibia: mass (gr): head + bill: wing:
Prey: Roach 2x. NLA 5.556.784 Red B.A 892 108.8 216.5
https://waarneming.nl/observation/216987781/ NLA 5.556.785 Red B.B 900 104.4 185.5
         
25-6-2021 1 chick outside nest. metal: tibia: mass (gr): head + bill: wing:
    NLA 5.556.785 Red B.B 1204 122.7 316.0