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Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
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location | May 11th, 2023: full clutch, 3 eggs in nest. | . | . |
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pullus | May 18th, 2023: chick 5.556.412 | May 18th, 2023: chick 5.556.413 | . |
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Data for nest 262-2023:
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 ? | 262-2023 | 67,3 | 48,1 | 78,40 | 67,6 | 47,3 | 76,15 | 64,9 | 48 | 75,29 | 229,84 | NEW NEST |
ring pulli: May 25 | laying A egg: April 20 | hatch A egg: May 18 | ||||||||||
catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | ||||||
Pullus | 18-05-2023 | 5.556.412 | 64 | 48,9 | ||||||||
Pullus | 18-05-2023 | 5.556.413 | 52 | 47 |
262-2023 | was approx nest 18-2021 | |||||
dam: | dam 2 central | |||||
location: | old location of 18, but slightly more north. 10 mtr W of 14, on N side. Code sprayed. | |||||
breeders: | cach x ? | |||||
OBSERVATIONS: | ||||||
30-04-2023 | nest: | 3 eggs. Measured & water test: | A | 90 - tip bottom | ||
adult: | 2 adults present. | B | 70 - tip bottom | |||
C | 80 - tip bottom | |||||
11-05-2023 | eggs | 3x | ||||
18-05-2023 | pulli: | 2 chicks ringed, 1 egg hatching. Metal only, too small | ||||
27-05-2023 | pulli: | 1x dead unringed chick in nest. | ||||
18-05-2023 | pulli: | saw 2 juvenile birds with metal only during the day around this location. Could be the 2 fledged chicks, or the same bird twice. |