§ T · Time machine One day from the archive
Tuesday, 21 April 2026
§ T · 02 Weather
Temperature
2.9° to 15.8°
avg. 9.6° · max at 16:11
Rain
0.0 mm
dry
Wind
25.7 m/s
from NO · avg. 5.4 m/s
Pressure
1026 hPa
1023 – 1027 hPa
Humidity
58%
1,406 readings
§ T · 03 Birds · acoustics
5,201
detections · 45 species
First tick at 00:16,
last at 23:50
0h6h12h18h24h
Struikgewas 2,993 · 37 species
Bladerdak 2,208 · 38 species
Top 10 this day
- 1 Common blackbird 99% 2,973
- 2 Eurasian blue tit 100% 758
- 3 Common wood pigeon 99% 314
- 4 Western jackdaw 98% 293
- 5 Great tit 96% 272
- 6 Common chaffinch 97% 92
- 7 Short-toed treecreeper 99% 66
- 8 Eurasian magpie 96% 66
- 9 European robin 94% 56
- 10 European greenfinch 97% 55
§ T · 04 Bats · sonar
72
passes · 8 species
First call at 00:31,
last at 23:47
Which species
- 1 Common pipistrelle 49.9 kHz 34
- 2 Serotine bat 30.2 kHz 19
- 3 Common noctule 19.9 kHz 9
- 4 Nathusius's pipistrelle 42.8 kHz 5
- 5 Whiskered bat 50.7 kHz 2
§ T · 05 Sky · AtmosBird
Frames today
144
58% clear
Sun
04:23 – 18:43
twilight 03:45 / 19:21
Moon
26%
Wassende sikkel · up to 65° high
§ T · 06 Bird migration · FlySafe radar
3.8
average intensity · peak
Dominant category
minimal
8 radar readings