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.C 1CY, June - August 28 2021, De Kreupel - Q, the Netherlands. Picture: Leon Kelder.

Red tibia ring r[B.C], ringed as pullus Larus cachinnans on June 11 2021 at nest Q01 21 in colony De Kreupel, the Netherlands.
ID certain, 2 parents are Caspian Gull cachinnans; one adult and one is 4CY.

June 11th, 2021: pullus red B.C. June 11th, 2021: pullus red B.C.
August 6th, 2021: pullus red B.C. August 6th, 2021: pullus red B.C.
Date: details:          
11-6-2021 Caspian Gull cachinnans alarming at nest. One is 4CY, one is adult.
  1 pullus outside nest. metal: tibia: mass (gr): head + bill: wing:
https://waarneming.nl/observation/216988114/  NLA 5.556.793 r-B.C. 701 93.5 152.0
           
6-8-2021 2 partners & 1 begging chick. https://waarneming.nl/observation/222234550/