Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
Home
Project Info
International trend
National trend
Site characteristics
Breeding biology
Fecundity
Food resources
Nonbreeding season
Breeding species
Hybrid scores
Ring codes
Future |
Caspian Gull cachinnans M|1 adult, April 23 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
| You can participate in this project too!
Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |
Tibia G-M|1 and metal NLA 5.641.002, ringed as breeding adult Larus cachinnans on April 23 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Recoveries:
25-04-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
08-05-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
25-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
30-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
06-09-2025 Lelystad (Oostvaardersplassen), Flevoland, NL 5.227,00 N 524,00 E colourring read Maarten Hotting
26-11-2025 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Folko van den Brink
Data for this nest in 2025:
| date |
darvic |
metal |
nest |
species |
sexe |
age |
wing |
mass |
head+ bill |
bill |
tarsus |
gonys |
barcode |
greyscale |
comments |
| 23-4-2025 |
G-M|1 |
.5641002 |
Vuilinisbak |
PONT |
F |
>4CY |
454 |
887 |
124 |
54,8 |
68,4 |
17,4 |
25B00544 / ACA25-9178 |
6 |
Trapped by ringer. Breeder on 3 eggs. |
below: Caspian Gull cachinnans M|1 adult, November 26 2025, Lelystad, the Netherlands. Picture: Folko van den Brink.

below: Caspian Gull cachinnans M|1 adult, June 25 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
.JPG)

|