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 F= 1CY, May 21 2020, De Kreupel, the Netherlands. Picture: Leon Kelder.

Bird hatched in nest K05 in season 2020. Brother / sister of p[F1]. Mother is Polish ringed r[02P4].
date: egg no: width (mm): length (mm): volume (cm3):      comments:
10-4-2020 --           Two adults, including female from Poland.
               
8-5-2020 C 50,2 72,4 132,49     2 pulli & 1 egg; pulli ringed.
      WING: HEAD + BILL: BILL: WEIGHT:  
8-5-2020 pullus NLA 5.545.417 & p[F1] -- 51.1 19.9 75  
8-5-2020 pullus NLA 5.545.418 -- 50.6 19.8 69 Too small for colour ring.
               
21-5-2020 pullus NLA 5.545.417 & p[F1] 100.0 90.7 38.1 558  
21-5-2020 pullus NLA 5.545.418 & p[F=] 98.0 89.4 37.1 517 Colour ring added.
21-5-2020 pullus NLA 5.545.432 83.5 85.7 36.0 440 New, probably C-chick.
             
12-6-2020 juvenile NLA 5.545.418 & p[F=]         B-chick p[F=] is dead.
             
26-6-2020 juveniles Two adults with two fledged juveniles.