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Coordinators: Albert de Jong Leon Kelder Roland-Jan Buijs Thijs Horst Merijn Loeve Mars Muusse |
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location | May 27th, 2023: old 13 location. | May 27th, 2023: old 13 location. | April 21st, 2024: indication placed on N side. |
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eggs | April 15th, 2020: 1 egg clutch. | April 27th, 2020: 3 eggs clutch. | May 27th, 2023: 3 eggs clutch. |
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April 21st, 2024: 3 eggs clutch. | . | . | |
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partner 1 | May 7th, 2020. | May 7th, 2020. | May 7th, 2020. |
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partner 1 | April 26th, 2021: possible bird for nest 13. | May 6th, 2021. | May 6th, 2021. |
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partner 1 | April 26 2024: Herring gull is guarding. | . | . |
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partner 2 | May 28th, 2021: possible partner nest 13. | May 28th, 2021: possible partner nest 13. | May 28th, 2021: possible partner nest 13. |
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pullus | May 28th, 2021: pullus b[F|R]. | May 28th, 2021: pullus b[F|S]. | May 28th, 2021. |
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Visits and data.
date: | egg no: | width (mm) | length (mm) | volume (cm3): | water test on April 27th: | |
15-04-2020 | A | 51,4 | 71,2 | 94,71 | 90 - tip on bottom | 1 egg in nest. |
27-04-2020 | B | 51,1 | 72,2 | 94,92 | 90 - tip on bottom | Now 3 eggs in nest. |
C | 49,8 | 68,5 | 85,54 | 60 - tip on bottom | ||
sum nest: | 275,17 | |||||
21-05-2020 | ?? | Nest not checked as there are Spoonbills and Little Egrets breeding there too now. | ||||
date: | ||||||
26-04-2021 | Adult bird landed on this location. First indication of occupied nest. | |||||
egg no: | width (mm) | length (mm) | volume (cm3): | water test on April 27th: | ||
06-05-2021 | A egg | 76,1 | 50,0 | 95,79 | 4 mm - floating | 3 eggs in nest. |
B egg | 76,9 | 48,2 | 89,95 | 4 mm - floating | ||
C egg | 73,8 | 48,7 | 88,13 | 1 mm - floating | ||
15-05-2021 | Nest missed in control. | |||||
28-05-2021 | metal | tibia | mass | head + bill | possible parent: Herring Gull type sub-adult. | |
pullus | .5559402 | b-F|P | 210 | 58,8 | ||
pullus | .5559403 | b-F|R | 190 | 67,2 | ||
pullus | .5559404 | b-F|S | 185 | 65,2 | ||
08-06-2021 | No visit. Spoonbill breeding here. | |||||
26-06-2021 | No visit. | |||||
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? |
13-2023 | 73,7 | 45,7 | 77,50 | 72,4 | 47,7 | 82,94 | 71,4 | 48,8 | 85,61 | 246,05 | ? |
13-2023 | |||
dam: | dam 2 central | ||
location: | is old nest 13-2021, just W of Vuilnisbakkie (252), red flag placed, dark grey plastic & red stripe. | ||
breeders: | |||
OBSERVATIONS: | |||
27-5-2023 | nest: | 3 eggs, measured today. |
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: | |
teus | teus | 71 | 50,1 | 89,73 | 67 | 49,2 | 81,66 | 68,2 | 48,4 | 80,44 | 251,83 | ||
013-2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | ||||||
3 | 17-4-2024 | 15-5-2024 | |||||||||||
dam: | dam 2 central | ||||||||||||
location: | 10 mtr behind 14, visible from north. Blue/yellow foam sign & flag 13. | ||||||||||||
parents? | New? | ||||||||||||
ring pulli: | 20-May | ||||||||||||
date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
OBSERVATIONS: | |||||||||||||
21-04-2024 | eggs: | 3 eggs, measured. | |||||||||||
23-04-2024 | adults: | 2x Herring Gulls adult. | |||||||||||
26-04-2024 | adults: | 2x Herring Gulls adult. | |||||||||||
07-05-2024 | eggs: |
3 eggs. | |||||||||||
14-05-2024 | eggs: | 3 eggs. | |||||||||||
04-06-2024 | nest: | 2x dead chicks in nest. Probably failed season 2024. | |||||||||||