De Natuurkalender
Latest observations
- Common ragweed · First .. 19-Aug-2019
- Common swift · Last ind.. 19-Aug-2019
- [vertalen: eiksoortonbekend] &.. 17-Aug-2019
- Red Admiral · First ind.. 15-Aug-2019
- Old world swallowtail ·.. 14-Aug-2019
- Common crane · First in.. 13-Aug-2019
- Ragweed (species unknown) &mid.. 11-Aug-2019
Extra attention
Hazel
Record your first flowering of hazel: Anonymus or With account
Click here for the species of which we would like you to record your sightings.
Observations per week
Map
Jan
Dec
First flower
The Dutch phenological network with observations of yearly recurring life cycle events in nature since 1868.
The new website has been made possible by the Prins Bernhard Cultuurfonds and Wageningen University.