Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Caspian Gull cachinnans 7.X 1CY-2CY, May 2023 - March 2024, England & the Netherlands. Picture: Mark Golley, Thijs Horst & Mars Muusse.
Tibia ring R-7X and metal NLA 5.625.195, ringed as pullus Larus cachinnans on May 11 2023 in nest 206 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team.
Recoveries:
11-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
18-06-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
26-06-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
08-07-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
04-10-2023 Renesse (Verklikkerplaat), Zeeland, NL 5.144,00 N 343,00 E colourring read T. Raats & R.J. Buijs
20-10-2023 Westkapelle (Zeedijk), Zeeland, NL 5.132,00 N 326,00 E colourring read Thijs Horst
31-10-2023 Westkapelle (Zeedijk), Zeeland, NL 5.132,00 N 326,00 E colourring read Joop Scheijbeler
03-11-2023 Renesse (Verklikkerplaat), Zeeland, NL 5.144,00 N 343,00 E colourring read M. Sluijter & R.J. Buijs
15-11-2023 Cley (Marshes), Norfolk, ENGELAND 5.257,00 N 103,00 E colourring read Mark Golley
16-11-2023 Cley (Marshes), Norfolk, ENGELAND 5.257,00 N 103,00 E colourring read Mark Golley
30-03-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Harry Kuipers & Thijs Horst
15-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
19-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
egg sizes & volume 2023 |
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SPECIES |
NEST |
A_length |
A_width |
A_volume |
B_length |
B_width |
B_volume |
C_length |
C_width |
C_volume |
TOTAL NEST: |
known parents? |
cach x cach |
206 |
71,3 |
50,5 |
91,55 |
67,3 |
51,3 |
89,18 |
67 |
48,8 |
80,34 |
261,07 |
one is same as 2022 |
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ring pulli: May 10 |
laying A egg: April 05 |
hatch A egg: May 03 |
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catch: |
date: |
metal: |
darvic: |
mass: |
wing: |
head+bill: |
bill: |
gonys: |
greytone: |
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Pullus |
11-5-2023 |
NLA5625194 |
r 7.W |
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Pullus |
11-5-2023 |
NLA5625195 |
r 7.X |
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Pullus |
18-6-2023 |
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r-7X |
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Pullus |
18-6-2023 |
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r-7W |
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206 |
(was X56A) |
dam: |
dam 2 west |
location: |
8 mtr W of blue sign VHF20, south side, on blocks |
breeders: |
cach x cach |
OBSERVATIONS: |
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26-4-2023 |
nest: |
3 eggs. |
27-4-2023 |
y-X56A is NOT the parent (27/4 confirmed). |
27-4-2023 |
3 eggs measured. Watertest C-egg: 20 - tip bottom |
11-5-2023 |
pull: |
2 kuikens geringd, 3e kuiken? |
11-5-2023 |
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r-7X: baars en voorn uitgebraakt |
18-5-2023 |
nest: |
nest empty, no chicks found |
27-mei |
nest: |
nest empty, no chicks found |
18-6-2023 |
pull: |
r-7X & r-7W present, 2 birds fledged. |
25-6-2023 |
pull: |
r-7X and r-7W present, 2 birds fledged. |
below: Caspian Gull cachinnans 7.X 2CY, March 30 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst.




below: Caspian Gull cachinnans 7.X 1CY, November 16 2023, Cley - Norfolk, England. Picture: Mark Golley.

below: Caspian Gull cachinnans 7.X 1CY, October 31 2023, Westkapelle, the Netherlands. Picture: Joop Scheijbeler.

below: Caspian Gull cachinnans 7.X 1CY, October 20 2023, Westkapelle, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans 7.X 1CY, July 08 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.


below: Caspian Gull cachinnans 7.X 1CY, June 25 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.


below: with r-7.W (foreground).


below: Caspian Gull cachinnans 7.X 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.



below: Caspian Gull cachinnans 7.X 1CY, May 11 2023, Lelystad colony, the Netherlands. Picture: Albert de Jong.
Ringed in nest 206, together with r-7.W.

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