Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
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Nests at Lelystad 2023: |
Caspian Gull cachinnans hybrid(?) 7.L adult, May 03 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Red tibia ring r[7.L] and metal NLA 6.214.904, ringed as breeding adult male Larus cachinnans-type at nest 62 on May 03 2023 in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs.
Recoveries:
21-07-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
26-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E captured by ringer Mars Muusse
30-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
02-05-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
05-05-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
13-07-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
ID uncertain for nest 62. Difficult to monitor exact relations in this cluster of nests.
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 ? |
62-2023 |
70,1 |
51,2 |
92,52 |
70,3 |
51,8 |
94,98 |
67,9 |
51,7 |
91,38 |
278,88 |
same as 2022 |
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ring pulli: -- |
laying A egg: -- |
hatch A egg: -- |
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catch: |
date: |
metal: |
darvic: |
mass: |
wing: |
head+bill: |
bill: |
gonys: |
greytone: |
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adult |
03-05-2023 |
6214904 |
r-7.L |
nn |
466 |
136 |
59,7 |
21,6 |
6 |
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male cach |
pullus |
18-05-2023 |
5556422 |
G-7|3 |
116 |
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52,6 |
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62-2023 |
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dam: |
dam 1 west |
location: |
Is nest 62-2021/22. From cluster 60-62-63. |
breeders: |
cach x ? |
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OBSERVATIONS: |
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09-04-2023 |
nest: |
no eggs, nest is ready. |
22-04-2023 |
nest: |
3 eggs, water test = tip bottom 90 degrees; tip bottom 50 degrees, tip bottom 45 degrees. |
03-05-2023 |
adult: |
trapped male cach-type: r-7.L. |
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eggs: |
3 eggs. |
18-05-2023 |
eggs: |
1 rotten egg. |
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pullus: |
1 chick ringed is G-7|3, 1 chick dead in nest. |
Visits and data 2024.
NEST code |
parent 1 |
parent 2 |
A_length |
A_width |
A_volume |
B_length |
B_width |
B_volume |
C_length |
C_width |
C_volume |
TOTAL NEST: |
r-7L / 62 |
cach |
cach r-7L |
71 |
50,9 |
92,62 |
67,6 |
52 |
92,03 |
66,5 |
50,3 |
84,71 |
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# eggs |
A-egg |
hatch |
# ringed chicks |
# all chicks |
# fledged chicks |
comments |
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3 |
10-4-2024 |
7-5-2024 |
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dam: |
dam 1 south |
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location: |
Is nest 62-2021/2023. r-7L again at spot 62, same as 2023. |
parents? |
same as 2020-23. |
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ring pulli: |
11-May |
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date |
darvic |
metal |
location / nest# |
species |
sexe |
age |
wing |
mass |
head+ bill |
bill |
tarsus |
gonys |
greyscale |
26-4-2024 |
r-7L |
.6214904 |
nest 62 dam 1 |
PONT |
M |
>4CY |
461 |
1234 |
136,7 |
59,0 |
74,5 |
19,0 |
7 |
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OBSERVATIONS: |
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12-4-2024 |
eggs: |
2 eggs, measured. |
21-4-2024 |
eggs: |
3 eggs, measured. |
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nest: |
cluster again: 60, 69, PAM0, n-F|+, and 2 Herrings to follow soon. |
26-4-2024 |
adults: |
CONTROL: trapped male, rings not replaced, remains r-7L |
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below: Caspian Gull cachinnans hybrid(?) 7.L adult, May 03 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Note: limited black on P5, and quite some black on innerweb of P10.
below: Caspian Gull cachinnans hybrid(?) 7.L adult, May 03 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Note: short and high bill, limited black on P5, and quite some black on innerweb of P10.
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