Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Lelystad 2021
nest y-PNED
nest y-PLDP
nest y-PHSV
nest y-P:A02
nest y-P:U60
nest zy-MT
nest r-FB
nest r-FC
nest 001
nest 003
nest 006
nest 011
nest 012
nest 013
nest 014
nest 015
nest 016B
nest 017
nest 018
nest 019
nest 021
nest 034
nest 035
nest 038
nest 040
nest 041
nest 042
nest 044
nest 045
nest 046
nest 047
nest 048
nest 053
nest 055
nest 056
nest 058
nest 060
nest 062
nest 063
nest 065
nest 066
nest 067
nest 072 |
Herring Gull argenteus (hybrid?) S|0 1CY-4CY, June 2021 - July 2024, the Netherlands. Picture: Jeroen Nagtegaal, Thijs Horst & Mars Muusse.
In nest 17, mother is Herring Gull. Father maybe Caspian Gull.
Tibia ring B-S|0 and metal NLA Arnhem 5.559.383, ringed as pullus Larus argentatus on May 28 2021 at Lelystad (Bataviahaven), Holland (5230.00 N 525.00 E - ringer Roland-Jan Buijs.
Recoveries:
08-07-2022 Alkmaar (Vuiloverslag), Noord-Holland, NL 5.236,00 N 445,00 E colourring read B. Buinsters & R.J. Buijs
14-11-2022 Utrecht (Vuiloverslag), Utrecht, NL 5.207,00 N 503,00 E colourring read Albert de Jong & Roland-Jan Buijs
28-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
04-05-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
23-09-2023 Utrecht (Haarrijnseplas), Utrecht, NL 5.207,00 N 501,00 E colourring read Yorick Smakman
12-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read M. Loeve & M. Muusse
21-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
23-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
31-05-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Merijn Loeve
01-06-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
24-06-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
09-07-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
15-07-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
below: Herring Gull argenteus (hybrid?) S|0 4CY, July 15 2024, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Herring Gull argenteus (hybrid?) S|0 4CY, July 09 2024, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Herring Gull argenteus (hybrid?) S|0 4CY, April 21 2024, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Herring Gull argenteus (hybrid?) S|0 4CY, April 12 2024, colony Lelystad, the Netherlands. Picture: Merijn Loeve & Mars Muusse.
below: Herring Gull argenteus (hybrid?) S|0 3CY, May 04 2023, Almere, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Herring Gull argenteus (hybrid?) S|0 1CY, June 26 2021, Lelystad, the Netherlands. Picture: Jeroen Nagtegaal & Mars Muusse.
b-S|0 has dark outerwebs on inner primaries. Brother/sister b-S|Z is more like Herring Gull.
Visits and data nest 17.
date: |
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16-04-2021 |
2 eggs. |
Behind block code "17". Red flag placed near nest. |
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egg no: |
width (mm) |
length (mm) |
volume (cm3): |
water test on April 16th: |
|
|
A |
53,5 |
71,5 |
103,04 |
20 - flat on bottom |
|
|
B |
52,3 |
68,9 |
94,89 |
25 - flat on bottom |
|
24-04-2021 |
Nest 17 at flag disappeared? Herring Gull sub-adult started new nest 17 1 meter to the west, it has again 2 eggs. |
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2 eggs. |
Behind bundle of braches and twigs. Flag replaced to this nest. And bundle sprayed red with paint. |
|
egg no: |
width (mm) |
length (mm) |
volume (cm3): |
water test on April 24th: |
|
|
A |
50,9 |
69,3 |
90,4 |
20 - flat on bottom |
|
|
B |
50,9 |
70,6 |
92,1 |
20 - flat on bottom |
|
26-04-2021 |
Herring Gull at new nest 17, at look-out stone 40 cm from nest. Two yellow-legged birds again 6 mtr to the right forming a new pair, will be nest 41. |
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On blocks, 10 meter below nest 17 at waterfront, always a guarding Caspian Gull type (not pure). This will later be nest 45. |
13-05-2021 |
On blocks, 10 meter below nest 17 at waterfront, again alert Caspian Gull type. |
15-05-2021 |
Nest 17 and nerst 41 split now definitely. Nest 17 with Herring gull sub-adult and 3 eggs. |
|
egg no: |
width (mm) |
length (mm) |
volume (cm3): |
water test on May 15th: No |
Measurements Monika Ballmann. |
|
A |
50,5 |
69,2 |
88,86 |
-- |
|
|
B |
50,6 |
70 |
90,24 |
-- |
|
|
C |
49,5 |
68,9 |
85 |
-- |
|
28-05-2021 |
|
metal ring: |
tibia ring: |
mass (gr): |
head + bill: |
|
|
pullus |
.5559382 |
b-S|Z |
123 |
56,5 |
|
|
pullus |
.5559383 |
b-S|0 |
243 |
64,5 |
|
|
pullus |
.5559384 |
b-S|1 |
198 |
63,6 |
|
08-06-2021 |
Herring Gull sub-adult at nest. |
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On blocks, below nest 17 at waterfront, now 2 Caspian Gull type birds. The guarding Caspian Gull type will now be assigned nest 45, no longer potentially linked to nest 17. |
26-06-2021 |
|
metal ring: |
tibia ring: |
mass |
head + bill |
wing |
|
pullus |
.5559382 |
b-S|Z |
1039 |
113,3 |
287 |
|
pullus |
.5559383 |
b-S|0 |
947 |
111,3 |
305 |
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