Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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

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Caspian Gull cachinnans F+ 1CY-2CY, May - June 2020 & October 2021, De Kreupel & De Cocksdorp - Texel, the Netherlands. Picture: Willem Wind & Leon Kelder.

Bird hatched in nest K06 in season 2020. Parent is cachinnans y[X804] from Germany.
date: egg no: width (mm): length (mm): volume (cm3):      Comments:    
24-4-2020 Attempt to trap parents at nest. Unsuccessful. Three warm eggs at nest.
               
21-5-2020 B 50,0 71,9 130,14 Cold egg.   1 pullus ringed. Two eggs cold.
21-5-2020 C 49,1 68,7 116,68 Cold egg.   1 pullus ringed. Two eggs cold.
    WING: HEAD + BILL: BILL: WEIGHT:  
21-5-2020 pullus NLA 5.545.430 & p[F+] -- 78.0 30.7 356 1 pullus ringed. Two eggs cold.
                 
12-6-2020 pullus NLA 5.545.430 & p[F+] 294.5 114.7 47.5 880  

Tibia P-F+ and metal NLA Arnhem 5.545.430, ringed as pullus Larus cachinnans on 21-05-2020 at IJsselmeer (De Kreupel), Holland (NL 5247.00 N 513.00 E) - ringer Leon Kelder.

Recoveries
12-06-2020, IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E captured by ringer Leon Kelder
04-10-2021, De Cocksdorp (Eierlandse Dam), Texel, NL 5.310,00 N 450,00 E colourring read Willem Wind
07-11-2021 Het Zwin (Graaf Leon Lippensdreef), West-Vlaanderen, BELGIE 5.121,00 N 320,00 E colourring read Jan Talloen

below: Caspian Gull cachinnans F+ 2CY, October 04 2021, De Cocksdorp - Texel, the Netherlands. Picture: Willem Wind.

below: Caspian Gull cachinnans F+ 1CY, June 12 2020, De Kreupel, the Netherlands. Picture: Leon Kelder.

below: Caspian Gull cachinnans F+ 1CY, May 21 2020, De Kreupel, the Netherlands. Picture: Leon Kelder.