Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
Herring Gull argenteus AB / AB adult, April 2024 - March 2025, the Netherlands. Picture: Ruud Costers, Mars Muusse & Thijs Horst.
Tibia ring BW-AB and metal ring Arnhem NLA 5.625.285, ringed as breeding adult female Herring Gull argenteus on April 26 2024 at nest r-7P /_bw-AB, Lelystad (Bataviahaven), the Netherlands. Ringer: Roland-Jan Buijs ringing team (Mars Muusse).
Partner is male Caspian Gull r-7.P, hence offspring are hybrids.
Recoveries:
18-06-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
22-07-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
07-09-2024 Sint Maartenszee (Strand), Noord-Holland, NL 5.247,00 N 440,00 E colourring read Ruud Costers
17-10-2024 Velsen (Strand Noordpier), Noord-Holland, NL 5.228,00 N 433,00 E colourring read Thijs Horst
19-10-2024 Velsen (Strand Noordpier), Noord-Holland, NL 5.228,00 N 433,00 E colourring read Fred Cottaar
16-03-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
01-04-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
04-04-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
05-05-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
30-07-2025 Zwanenwater (Strand), Noord-Holland, NL 5.248,00 N 440,00 E colourring read Ruud Costers
30-10-2025 Schoorl aan Zee (Strand), Noord-Holland, NL 5.241,00 N 438,00 E colourring read Dook Vlugt
Visits and data 2025.
| 2025 | parent 1 | parent 2 | A_length | A_width | A_volume | B_length | B_width | B_volume | C_length | C_width | C_volume | TOTAL NEST:
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# eggs |
| r-7P & b/w-AB | cach | teus | 70,5 | 50,6 | 69,9 | 49,2 | 69 | 48,8 | 3 | ||||
| dam: | dam 1 west
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| location: | was r7P-2024, far west
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| parents: | same as 2024
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| ringed: | |||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | |
| 31-05-2025 | g-R|V | 5641917 | r-7P & b/w-AB | HYBRID | pullus | 562 | |||||||
| 31-05-2025 | g-R|W | 5641918 | r-7P & b/w-AB | HYBRID | pullus | 454 | |||||||
| 31-05-2025 | g-R|X | 5641919 | r-7P & b/w-AB | HYBRID | pullus | 488 | |||||||
OBSERVATIONS:
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| 16-03-2025 | nest | r-7P at location 2024, female is HG b/w-AB which was present, at bread
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| 21-03 | nest | both partners present near nest location
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| 25-03 | nest | r-7P present at nest location
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| 01-04 | nest | r-7P present at nest location
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| 04-04 | nest | r-7P and partner present
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| 21-04 | eggs | 3x eggs measured
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| food | leg of Greyleg goose chick
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| 13-05 | nest | 3 eggs hatching
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| 31-05 | chicks | 3x chicks ringed
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Visits and data 2024 for nest r-7P & b/w-AB (154)
| 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-7.P & b/w-AB | cach | teus | 71,4 | 51,7 | 96,09 | 68,6 | 51 | 89,84 | 70,3 | 52,4 | 97,19 | 283,12 | |
| 2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | ||||||
| 3 | 16-4-2024 | 14-5-2024 | |||||||||||
| dam: | dam 1 south | ||||||||||||
| location: | far western nest in 2023 & 2024. | ||||||||||||
| parents? | same as 2023 | ||||||||||||
| ring pulli: | 18-May | ||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | 26-04-2024 | b/w-AB | .5625285 | nest r-7P | teus | F | >4CY | 403 | 119,2 | 51,5 | 64,7 | 18,6 | 5 |
| 31-05-2024 | g-C|R | .5631118 | r-7P b/w-AB | cach x teus | 1CY | ||||||||
| 31-05-2024 | g-C|T | .5631119 | r-7P b/w-AB | cach x teus | 1CY | ||||||||
| 31-05-2024 | g-C|U | .5631120 | r-7P b/w-AB | cach x teus | 1CY | ||||||||
| OBSERVATIONS: | |||||||||||||
| 08-03-2024 | adult: | r-7P & argenteus female. | |||||||||||
| 12-04-2024 | eggs: | empty nest, but is ready. | |||||||||||
| 21-04-2024 | eggs: | 3 eggs, measured. | |||||||||||
| 26-04-2024 | adult: | partner trapped at nest. | |||||||||||
| 14-05-2024 | eggs: |
2 eggs. | |||||||||||
| chicks: | 1x, just hatched. | ||||||||||||
| 31-05-2024 | chicks: | 3x ringed. | |||||||||||
| 18-06-2024 | adult: | female b/w-AB present. | |||||||||||
below: Herring Gull argenteus AA / AB adult, March 16 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Partner 2024, male Caspian Gull r-7P also present.
.JPG)
below: Herring Gull argenteus AA / AB adult, October 18 2024, Wijk aan Zee, the Netherlands. Picture: Mars Muusse.
below: Herring Gull argenteus AA / AB adult, September 07 2024, Sint Maartenszee, the Netherlands. Picture: Ruud Costers.
below: Herring Gull argenteus AA / AB adult, June 18 2024, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Herring Gull argenteus AB / AB adult female, April 26 2024, colony Lelystad, the Netherlands. Picture: Mars Muusse & Thijs Horst.
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
| 26-4-2024 | b/w-AB | .5625285 | nest r-7P | ZM | F | >4CY | 403 | 119,2 | 51,5 | 64,7 | 18,6 | 5 |
Rather classic female Herring Gull.
