Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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International trend
National trend
Site characteristics
Breeding biology
Fecundity
Food resources
Nonbreeding season
Breeding species
Hybrid scores
Ring codes
Future
Lelystad 2023:
nest y-PNED
nest y-P:U60
nest y-X56A
nest y-X71A
nest y-X60J
nest y-XCHP
nest w-327:U
nest n-F|6
nest n-F|8
nest n-F|+
nest n-F|N
nest r-6.B
nest r-7.P
nest r-C.G
nest w-8Z
nest 003
nest 006
nest 013
nest 014
nest 015
nest 017
nest 017B
nest 018
nest 019
nest 021
nest 026
nest 033
nest 034
nest 035
nest 038
nest 040
nest 044
nest 046
nest 048
nest 053
nest 055
nest 060
nest 061Z
nest 062
nest 063
nest 107Z
nest 108
nest 109
nest 111
nest 112
nest 127Z
nest 131Z
nest 132 YLG
nest 135
nest 139
nest 147Z
nest 163
nest 167
nest 168
nest 204
nest 206
nest 207
nest 223
nest 227
nest 230Z
nest 231
nest 244Z
nest 245Z
nest 248
nest 251
nest 252
nest 253
nest 254
nest 255Z
nest 256Z
nest 262
s |
Cachinnans - nest Lelystad g-A|D ("Vuilnisbakkie", 252)
General remarks:
- Eggs: Volume measured by Stonehouse (1964) and Spaans & Spaans (1975), which make comparison possible with data from Texel (Camphuysen pers comm 16.04.2020).
- Nest 252 positioned on dam 2 central section: 2 mtr W of nest 18 "nest with blue rope", on S-side of dam 2. Black plastic sprayed with white + sign, nicknamed "vuilnisbakkie".
- ID certain in 2023: both parents are cachinnans, male is sub-adult.
- ID certain in 2024: both parents are same cachinnans as in 2023. Female cachinnans trapped in April 2024, now g-A|D.
location |
April 9th, 2023: nest location dam 2. |
May 13th, 2023: Caspian parents. |
April 21st, 2024: nest location |
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eggs |
April 26th, 2023: full clutch, with 3 eggs. |
April 21st, 2024: full clutch, with 3 eggs. |
April 30 2024: location. |
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partner 1 |
April 27th, 2023: sub-adult male cachinnans. |
April 27th, 2023: sub-adult male cachinnans. |
April 27th, 2023: sub-adult male cachinnans. |
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partner 1 |
April 23rd, 2024: adult male cachinnans. |
April 23rd, 2024: adult male cachinnans. |
April 23rd, 2024: adult male cachinnans. |
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partner 1 |
April 30th, 2024: male cachinnans. |
April 30th, 2024: male cachinnans. |
April 30th, 2024: male cachinnans. |
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partner 2 |
April 27th, 2023: adult female cachinnans. |
April 27th, 2023: adult female cachinnans. |
April 27th, 2023: adult female cachinnans. |
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partner 2 |
April 23rd, 2024: adult female cachinnans. |
April 23rd, 2024: adult female cachinnans. |
April 23rd, 2024: adult female cachinnans. |
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partner 2 |
April 26, 2024: trapped female cachinnans, now g-A|D. |
April 26, 2024: trapped female cachinnans, now g-A|D. |
April 26, 2024: trapped female cachinnans, now g-A|D. |
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pullus |
May 11th, 2023: pullus r[7.9]. |
May 11th, 2023: pullus r[7.+]. |
July 8th, 2023: fledged g[8|8]. |
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Data for nest 252-2023:
egg sizes & volume 2023 |
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SPECIES |
NEST |
A_length |
A_width |
A_volume |
B_length |
B_width |
B_volume |
C_length |
C_width |
C_volume |
TOTAL NEST: |
cach x cach |
252-2023 |
73,5 |
48,1 |
85,62 |
74 |
49,2 |
90,19 |
70,5 |
49 |
85,23 |
261,04 |
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ring pulli: May 12 |
laying A egg: April 07 |
hatch A egg: May 05 |
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catch: |
date: |
metal: |
darvic: |
pullus |
11-5-2023 |
5.556.457 |
r-7.9 |
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few days old |
pullus |
11-5-2023 |
5.556.458 |
r-7.+ |
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few days old |
pullus |
18-5-2023 |
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mass: |
head+bill: |
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nothing present |
pullus |
27-5-2023 |
5.625.262 |
g-8|8 |
577 |
262 |
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252-2023 |
Nest "dustbin" (Vuilnisbakkie) |
dam: |
dam 2 central |
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location: |
2 mtr W of nest 18 "nest with blue rope". Black plastic sprayed with white + sign. |
breeders: |
cach x cach |
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OBSERVATIONS: |
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09-04-2023 |
nest: |
2 eggs measured. No watertest. |
26-04-2023 |
nest: |
3 eggs. Measured. |
27-04-2023 |
adult: |
adult female cach & 5/6CY male cach |
11-05-2023 |
pulli: |
2 chicks ringed, other chick? |
13-05-2023 |
adult: |
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18-05-2023 |
pulli: |
Nest empty, no chicks found |
27-05-2023 |
pulli: |
1x extra pullus ringed and measured. |
25-06-2023 |
pulli: |
G-8|8 present. At least 1 bird fledged. |
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: |
252-2024 |
cach |
cach |
79 |
48,3 |
92,79 |
75 |
48,5 |
88,83 |
72 |
48 |
83,52 |
265,15 |
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# eggs |
A-egg |
hatch |
# ringed chicks |
# all chicks |
# fledged chicks |
comments |
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3 |
15-4-2024 |
13-5-2024 |
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dam: |
dam 2 west |
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location: |
nest thrash can "Vuilnisbakkie", is same as 2023 |
parents? |
Same as 2023. |
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ring pulli: |
18-May |
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date |
darvic |
metal |
location / nest# |
species |
sexe |
age |
wing |
mass |
head+ bill |
bill |
tarsus |
gonys |
greyscale |
26-04-2024 |
g-A|D |
.5625298 |
Vuilnisbakkie |
PONT |
F |
>4CY |
436 |
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125,0 |
55,6 |
69,5 |
19,0 |
5 |
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OBSERVATIONS: |
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21-04-2024 |
eggs: |
3 eggs, measured. |
26-04-2024 |
adult: |
adult female trapped at nest, now g-A|D. |
07-05-2024 |
eggs: |
3x, of which 1x hatching. |
14-05-2024 |
nest: |
Empty. Search for chicks quickly stopped (fragile nest). No ringed. Will ring when large. |
04-06-2024 |
nest: |
Empty and no activity. No adults in territory. |
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