Larus cachinnans

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

Project Info
International trend
National trend
Site characteristics
Breeding biology
Fecundity
Food resources
Nonbreeding season
Breeding species
Hybrid scores
Ring codes
Future

Nests at De Kreupel 2020
nest r-02P4 20
nest y-X804 20
nest D01 20
nest D02 20
nest D03 20
nest L01 20
nest L02 20
nest L03 20
nest M02 20

Nests at De Kreupel 2021
nest r-02P4 20
nest w-201U 21
nest g-XLHD 21
nest r-KA 21
nest r-KB 21
nest r-KC 21
nest r-KD 21
nest r-KE 21
nest r-KF 21
nest r-KH 21
nest r-KJ 21
nest r-KK 21
nest A01 21
nest C03 21
nest C04 21
nest C06 21
nest D01 21
nest D03 21
nest D05 21
nest D06 21
nest D07 21
nest D08 21
nest E01 21
nest H01 21
nest L01 21
nest L02 21
nest L05 21
nest L06 21
nest L07 21
nest M01 21
nest M04 21
nest M06 21
nest Q01 21

**Caspian Gull cachinnans 0.F adult,** February 2023, Almere, the Netherlands. Picture: Eric Roeland.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Bird from De Kreupel, nest L23 on island L. Data for this nest:

Date:	Egg code	Height (mm)	Width (mm)	Comments	Metal NLA	Colour ring	Wing (mm)	Head+ bill (mm)	Bill (mm)	Mass (gr)	Tarsus	Gonys	Swab no

29-4-2022				3 eieren
				trapped adult Caspian Gull	6214037	Red 0.F	448	124.1	60.5	1028	72.8	17.6	1069

13-5-2022				2 eggs, 1 egg hatching

20-5-2022				3 pulli in nest	5623567	Red 3.D		67.2		225
					5623568	Red 3.E		60.2		131
					5623569	Red 3.F		64.4		228

23-6-2022				1 pullus in colony	5623568	Red 3.E	335.5	128.6		1302			291


20-5 - 25-5-2022 camera trap:				Caspian Gull r-0F
				Caspian Gull partner

below: **Caspian Gull cachinnans 0.F adult,** February 25 2023, Almere, the Netherlands. Picture: Eric Roeland.

below: **Caspian Gull cachinnans 0.F adult,** February 24 2023, Almere, the Netherlands. Picture: Eric Roeland.