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Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
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location | April 27th, 2022: nest location. | April 27th, 2022: nest location. | April 27th, 2022: 3 eggs. |
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location | April 26th, 2023: same location as 2022. | April 26th, 2023: 3 eggs. | April 26th, 2023: 3 eggs. |
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location | April 21st, 2024: full clutch, with 3 eggs. | April 21st, 2024: full clutch, with 3 eggs. | . |
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partner 1 | May 4th, 2022: partner 1 is cachinnans. | April 27th, 2022: partner 1 is cachinnans. | April 27th, 2022: partner 1 is cachinnans. |
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partner 1 | May 4th, 2022: partner 1 is cachinnans. | May 4th, 2022: partner 1 is cachinnans. | May 4th, 2022: partner 1 is cachinnans. |
partner 1 | April 29th, 2022: partner 1 is cachinnans. | April 29th, 2022: partner 1 is cachinnans. | May 13th, 2023: partner 1 is cachinnans. |
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partner 1 | May 13th, 2023: partner 1 is cachinnans. | April 30 2024: male cachinnans. | April 30 2024: male cachinnans trapped:g-A|H. |
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partner 2 | April 29th, 2022: partner 2 is Caspian Gull type. | April 29th, 2022: partner 2 is Caspian Gull type. | May 13th, 2023: partner 2 is Caspian Gull type. |
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partner 2 | May 02 2024: partner 2 is Caspian Gull type. | May 02 2024: partner 2 is Caspian Gull type. | May 02 2024: partner 2 is Caspian Gull type. |
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pullus | May 22nd, 2022: pullus r[6.K]. | June 22nd, 2022: pullus r[6.L]. | May 22nd, 2022: pullus r[6.M]. |
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pullus | July 18th, 2023: juvenile g[7|J]. | July 18th, 2023: juvenile g[7|K]. | June 04 2024: chick g-M|B. |
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pullus | June 04 2024: chick g-M|C. | June 04 2024: chick g-M|D. | . |
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Visits and data 2022 for nest 136:
Estimation egg laying: A-egg = April 12 2022. Estimating hatching = May 10 2022.
egg no: | width (mm): | length (mm): | water test April 27th: | ||||
27-Apr-22 | 3 eggs | A egg | 73,5 | 50,5 | tip bottom - 70 gr | Flag 139 attached. | |
B egg | 72,5 | 52,3 | tip bottom - 40 gr | ||||
C egg | 70 | 51 | tip bottom - 40 gr | ||||
29-Apr-22 | 2 adults. | female has thin P5 band and standing bird is HG type. | |||||
male has cachinnans wing, but bulbuous bill | |||||||
01-May-22 | together with LBBGs | ||||||
04-May-22 | partner 1 present. Images | ||||||
metal | darvic | mass | wing | H+B | |||
22-May-22 | pullus | .5625162 | r-6K | 158 | 33 | 62,8 | |
pullus | .5625163 | r-6L | 160 | 35 | 63,4 | ||
pullus | .5625164 | r-6M | 98 | 30 | 55,8 | ||
21-Jun-22 | pullus | r-6.L on blocks at nest 135. Both r-6L and r-6M fledged. | |||||
partner 2 is defending chick |
egg sizes & volume 2023 | ||||||||||||
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 | 139 | 74,2 | 51 | 97,17 | 74,2 | 49,7 | 92,28 | 72,7 | 50,7 | 94,09 | 283,55 | same as 2022 |
ring pulli: May 12. | laying A egg: April 7. | hatch A egg: May 5. | ||||||||||
catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | bill: | gonys: | greytone: | |||
Pullus | 18-5-2023 | 5556401 | G-7|J | 161 | -- | 66 | -- | |||||
Pullus | 18-5-2023 | 5556402 | G-7|K | 116 | -- | 57,4 | -- |
139-2023 | |||||
dam: | dam 1 east | ||||
location: | easternmost nest with yellow/black flag. On N side with red/white foam. | ||||
breeders: | cach x cach | ||||
OBSERVATIONS: | |||||
04-04-2023 | adult: | 1x cachinnans guarding and at nest | |||
09-04-2023 | nest: | no eggs, nest is ready. Y/B flag near nest. | |||
adult: | 1x cachinnans guarding and at nest | ||||
26-04-2023 | adult: | breeding cachinnans | |||
eggs: | 3x egg, measured | A | 80 - punt bodem | ||
B | 60 - punt bodem | ||||
C | 90 - punt bodem | ||||
13-05-2023 | adult: | male and female are cachinnans. | |||
18-05-2023 | pulli: | 2 chicks ringed, 3rd not found | |||
27-05-2023 | pulli: | dense vegetation, nothing found. | |||
25-06-2023 | pulli: | g-7|K and g-7|J present |
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: | |
g-A|H (139) | cach | cach | 73 | 50,7 | 94,48 | 72,2 | 50,6 | 93,08 | 73 | 51 | 95,60 | 283,16 | |
2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | ||||||
3 | 15-4-2024 | 13-5-2024 | |||||||||||
dam: | dam 1 east | ||||||||||||
location: | most eastern nest on dam 1. same as 2023, with white/red isolation foam | ||||||||||||
parents? | same as 2023 | ||||||||||||
ring pulli: | 17-May | ||||||||||||
date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
30-04-2024 | g-A|H | .5631202 | nest 139 | PONT | M | >4CY | 464 | 1127 | 134,4 | 54,6 | 71 | 21 | 8 |
14-05-2024 | .5631180 | nest 139 | PONT | 1CY | 69 | ||||||||
14-05-2024 | .5631181 | nest 139 | PONT | 1CY | 75 | ||||||||
04-06-2024 | g-M|B | .5631180 | nest 139 | PONT | 1CY | 159 | 654 | 93,7 | |||||
04-06-2024 | g-M|C | .5631181 | nest 139 | PONT | 1CY | 155 | 725 | 94,4 | |||||
04-06-2024 | g-M|D | .5631136 | nest 139 | PONT | 1CY | 154 | 701 | 93,8 | |||||
OBSERVATIONS: | |||||||||||||
21-04-2024 | eggs: | 3 eggs, measured. | |||||||||||
30-04-2024 | adults: | trapped male Caspian Gull, now g-A|H. | |||||||||||
02-05-2024 | adults: | female cach present at blocks in front of nest site. | |||||||||||
07-05-2024 | eggs: | 3x. | |||||||||||
14-05-2024 | chicks: | 3 chicks: 1x wet chick, 2x ringed, only metal. Chicks 1 day old. | |||||||||||
04-06-2024 | chicks: | 3x ringed, darvic added for 2 birds which had metal already. | |||||||||||
food: | fish bolus, and 1 crab! | ||||||||||||