Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Caspian Gull cachinnans N|P 5CY, 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |
Tibia G-N|P and metal NLA 5.641.021, ringed as breeding 5CY Larus cachinnans on May 01 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Recoveries:
05-05-2025 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
Data for nest r-CU & g-N|P (272).
| 2025 |
parent 1 |
parent 2 |
A_length |
A_width |
A_volume |
B_length |
B_width |
B_volume |
C_length |
C_width |
C_volume |
|
|
# eggs |
r-CU & g-N|P
(272 Yellow Rope) |
cach |
cach |
69 |
48,5 |
|
66,1 |
46,1 |
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2 |
| dam: |
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| location: |
Between Blue Rope and nest 14
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| parents: |
new, r-CU is pullus 2022 of nest 14
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| ringed: |
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| date |
darvic |
metal |
location / nest# |
species |
sexe |
age |
wing |
mass |
head+ bill |
bill |
tarsus |
gonys |
greyscale |
|
| 01-05-2025 |
g-N|P |
5641021 |
r-CU & g-N|P |
PONT |
F |
5CY |
431 |
938 |
126 |
57,3 |
69,1 |
17,8 |
7,5 |
|
| 31-05-2025 |
g-C|0 |
5641923 |
r-CU & g-N|P |
PONT |
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pullus |
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348 |
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| 16-03-2025 |
adult |
r-CU present, is 2022 chick from nest 14 (which is only 10 meters away!
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| 01-04 |
adult |
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| 12-04 |
adult |
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| 23-04 |
eggs |
|
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adult |
unringed female cachinnans
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| 01-05 |
adult |
trapped female cachinnans 5CY, now g-N|P.
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eggs |
2x eggs |
| 08-05 |
adult |
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| 13-05 |
nest |
2x eggs |
| 31-05 |
nest |
1 chick ringed, other one not found
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below: Caspian Gull cachinnans N|P 5CY, July 09 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.

.JPG)
below: Caspian Gull cachinnans N|P 5CY, June 30 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
.JPG)

below: Caspian Gull cachinnans N|P 5CY, May 01 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
| date |
darvic |
metal |
nest |
species |
sexe |
age |
wing |
mass |
head+ bill |
bill |
tarsus |
gonys |
barcode |
greyscale |
comments |
1-5-2025 |
G-N|P |
.5641021 |
r-CU & g-N|P (272 Yellow Rope) |
PONT |
F |
5CY |
431 |
938 |
126 |
57,3 |
69,1 |
17,8 |
7,5 |
25B00656 |
Trapped by ringer. |






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