Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
hybrid Herring Gull argenteus x Caspian Gull cachinnans 0.A adult, April 29 2022 & November 11 2022, De Kreupel, the Netherlands.
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Bird from De Kreupel, nest C5 on island C. Data for this nest:
| Date: | Egg code | Height (mm) | Width (mm) | Comments | Metal NLA | Colour ring | Wing (mm) | Head+ bill (mm) | Bill | Mass (gr) | Tarsus | Gonys | Swab no |
| 14-4-2022 | A-egg | 72.7 | 51.8 | 2 eggs | |||||||||
| B-egg | 74.1 | 52.8 | |||||||||||
| 29-4-2022 | Adult trapped Caspian x Herring | 6214033 | Red 0.A | 441 | 123.5 | 57.5 | 933 | 71.4 | 17.8 | 1064 | |||
| 13-5-2022 | 3 pulli in nest | 5620234 | Red 0.T | 55.0 | 98 | ||||||||
| 5620235 | Red 0.U | 55.1 | 101 | ||||||||||
| 5620236 | Red 0.V | 50.9 | 70 | ||||||||||
below: Herring Gull argenteus x Caspian Gull cachinnans 0.A adult, November 11 2022, De Kreupel - Q, the Netherlands. Picture: Leon Kelder.
