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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 27 2023: 3 eggs. | April 27 2023: nest at dam 2. | . |
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April 21st, 2024: nest n-F|+ now at dam 1. | April 21st, 2024: 3 eggs. | April 21st, 2024: situation at cluster. | |
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partner 1 | April 09 2023: n-F|+. | April 09 2023: n-F|+. | March 26 2024: male n-F|+. |
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partner 1 | March 26 2024: male n-F|+. | April 30 2024: trapped male n-F|+. | . |
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partner 2 | May 13 2023: Caspian Gull. | May 13 2023: Caspian Gull. | May 13 2023: Caspian Gull. |
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chicks | May 31 2024: chick g-C|2. | May 31 2024: chick g-C|3. | June 04 2024: fish bolus from g-C|2. |
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Visits and data:
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 | n-F|+ 2023 | 69,3 | 46,6 | 75,77 | 67,4 | 47,1 | 75,28 | 67,3 | 47 | 74,85 | 225,91 | new nest |
ring pulli: May 18 | laying A egg: April 13 | hatch A egg: May 11 |
n-F|+ 2023 | New nest | |||||||
dam: | dam 2 east, blacks | |||||||
location: | 20 mtr SW of nest 55, 15 mtr W of XCHP, low at dam 2. In front of wood. Red spot sprayed. | |||||||
breeders: | cach x cach | |||||||
OBSERVATIONS: | ||||||||
27-04-2023 | nest: | 3 eggs measured. Water test. | A: 90 - tip bottom | |||||
adult: | breeding adult cachinnans is n[F|+]. | B: 60 - tip bottom | ||||||
30-04-2023 | adult: | partner is also cachinnans. | C: 80 - tip bottom | |||||
n-F|+ at nest. | ||||||||
13-05-2023 | adult: | n-[F|+] & partner are immatures. | ||||||
18-05-2023 | nest: | 1 egg hatching, no chicks found | ||||||
27-05-2023 | pulli: | 1x chick dead in nest, age 1 day. No other chicks found. Several dead chicks in this section (55, XCHP, n-F|+). | ||||||
25-06-2023 | adult: | not present, no birds here. |
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: | |
n-F|+ 2024 | cach | cach | 74,6 | 48,6 | 88,72 | 72,1 | 50 | 90,76 | 70,7 | 47 | 78,63 | 258,11 | |
# eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | |||||||
3 | 16-4-2024 | 14-5-2024 | |||||||||||
dam: | dam 1 south | ||||||||||||
location: | dam 1 south, near cluster nest 60, but 5 mtr S, at Blackberry edge. | ||||||||||||
parents? | n-F|+-2023 was at dam 2. Now new breeder at dam 1. | ||||||||||||
ring pulli: | 18-May | ||||||||||||
date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | 30-04-2024 | n-F|+ | .5552921 | Dam 1 | PONT | M | 5CY | 464 | 1180 | 135 | 60,3 | 71 | 19,6 | 5 |
31-05-2024 | g-C|2 | .5631128 | N-F|+ | PONT | 1CY | ||||||||
31-05-2024 | g-C|3 | .5631129 | N-F|+ | PONT | 1CY | ||||||||
04-06-2024 | g-C|2 | .5631128 | N-F|+ | PONT | 1CY | 127 | 91,9 | ||||||
04-06-2024 | g-C|3 | .5631129 | N-F|+ | PONT | 1CY | 220 | 809 | 108,7 | |||||
OBSERVATIONS: | |||||||||||||
12-04-2024 | eggs: | no nest found. | |||||||||||
21-04-2024 | eggs: | 3 eggs, measured. | |||||||||||
nest: | cluster again: 60, 69, PAM0, n-F|+, and 2 Herrings to follow soon. | ||||||||||||
30-04-2024 | adults: | trapped n-F|+. | |||||||||||
02-05-2024 | eggs: | 3 eggs. | |||||||||||
05-05-2024 | nest: | 3 eggs, not measured. | |||||||||||
14-05-2024 | nest: | 2 eggs, no chick found in dense vegetation. | |||||||||||
31-05-2024 | chicks: | 2x ringed. | |||||||||||
04-06-2024 | chick: | g-C|2 & C|3 present. measured. | |||||||||||
food: | fish bolus. | ||||||||||||