Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Breeding biology
Fecundity
Food resources
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Breeding species
Hybrid scores
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Nests at Lelystad 2023
nest y-PNED
nest y-P:U60
nest y-X56A
nest y-X71A
nest y-X60J
nest y-XCHP
nest w-327:U
nest n-F|6
nest n-F|8
nest n-F|+
nest n-F|N
nest r-6B
nest r-CG
nest w-8Z
nest 003
nest 006
nest 013
nest 014
nest 015
nest 017
nest 017B
nest 018
nest 019
nest 021
nest 026
nest 033
nest 034
nest 035
nest 038
nest 040
nest 044
nest 046
nest 048
nest 053
nest 055
nest 060
nest 061Z
nest 062
nest 063
nest 107Z
nest 108
nest 109
nest 111
nest 112
nest 127Z
nest 131Z
nest 132 YLG
nest 135
nest 139
nest 147Z
nest 154
nest 163
nest 167
nest 168
nest 204
nest 206
nest 207
nest 223
nest 227
nest 230Z
nest 231
nest 244Z
nest 245Z
nest 248
nest 251
nest 252
nest 253
nest 254
nest 255Z
nest 256Z
nest 262 |
Caspian Gull cachinnans 8.P 1CY-2CY, May 2023 - March 2024, Lelystad & Almere, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Tibia ring R-8.P and metal NLA 5.556.472, ringed as pullus Larus cachinnans on May 11 2023 in nest 108 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
15-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
17-12-2023 Almere (Dashorstdijk), Flevoland, NL 5.225,00 N 512,00 E colourring read Eric Roeland
30-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
31-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
06-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
12-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
15-03-2024 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Jaap van der Linden
30-03-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Harry Kuipers & Thijs Horst
09-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
08-07-2024 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 |
nest 108 |
74 |
49,7 |
92,03 |
68,2 |
49,8 |
85,16 |
69,7 |
48,6 |
82,89 |
260,08 |
same as 2022 |
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ring pulli: 12-mei |
laying A egg: 7-april |
hatch A egg: 5-mei |
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catch: |
date: |
metal: |
darvic: |
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pull |
11-05-2023 |
NLA 5.556.472 |
r 8.P |
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pull |
11-05-2023 |
NLA 5.556.473 |
r 8.V |
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pull |
11-05-2023 |
NLA 5.556.474 |
r 8.4 |
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pull |
18-06-2023 |
NLA 5.556.472 |
r-8.P |
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pull |
18-06-2023 |
NLA 5.556.474 |
r-8.4 |
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nest 108 |
dam: |
dam 1 T-split |
location: |
on W-part, border bitumen - blocks. Top of dam. Coded. Exact spot as in 2022, then r[C.S] (which was at Almere dump + partner, on 23/4). |
breeders: |
cach x cach |
OBSERVATIONS: |
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09-04-2023 |
nest: |
2 eggs measured. No watertest. |
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adult: |
1x cachinnans unringed. Still not sure if r-CS is partner this season. |
26-04-2023 |
adult: |
legs not visible. |
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nest: |
1,5 m NW is another nest, 2 eggs. LBBG? (on 27/4: yes, this is LBBG). |
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eggs: |
3x egg, measured. No water test, ringing date known. |
27-04-2023 |
adult: |
5CY male cach. Unringed. |
11-05-2023 |
pulli: |
3 chicks ringed. |
13-05-2023 |
adult |
partner 1 present. |
18-06-2023 |
pulli: |
r-8P and r-84 present. Large chicks. 2x juveniles fledged. |
25-06-2023 |
pulli: |
r-8P present, other ring unreadable, probably r-8.4. |
below: Caspian Gull cachinnans 8.P 2CY, March 30 2024, Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 8.P 2CY, January 12 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8.P 1CY, July 08 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8.P 1CY, June 25 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8.P 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8.P 1CY, May 11 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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