Helsinki calls residents to report mammal sightings

The City of Helsinki is collecting residents’ sightings of six easily recognisable mammal species through the Finnish Biodiversity Information Facility’s laji.fi website. The University of Helsinki’s Department of Forest Ecology also participates in the project.
Have you seen a fox, badger, raccoon dog, hedgehog, squirrel or rat in Helsinki? Photo: Anja Vest ja Teemu Heinonen, Inka Sääskilahti, Jan W. Ahlfors, Hannu Rämä ja Håkan Söderholm
Have you seen a fox, badger, raccoon dog, hedgehog, squirrel or rat in Helsinki? Photo: Anja Vest ja Teemu Heinonen, Inka Sääskilahti, Jan W. Ahlfors, Hannu Rämä ja Håkan Söderholm

The city calls residents to report sightings of foxes, badgers, raccoon dogs, squirrels, rats and hedgehogs, of which, except for the squirrel, sightings were also collected 10 years ago with a map survey. This time, the survey also includes squirrels.

“Squirrels are easy to spot and, at times, abundant mammals. However, the Finnish squirrel population has declined and suffered some poor spruce seed years, which also affects the nutrition of urban squirrels. We are interested in the current situation of Helsinki’s signature animal,” says Raimo Pakarinen, Environment Inspector at the City of Helsinki Environmental Services.

The number of sightings does not directly reflect the abundance of the mammalian species. Still, the survey provides reliable information on their distribution and degree of urbanisation. All the surveyed species have adapted to urban life. However, there are still differences in the level they are accustomed to the presence of people and other disturbances.

Please use the easy-to-use online form available at laji.fi(Link leads to external service) to report your sightings. The main information to be reported includes the species and the place and date of the sighting. You can also submit a picture with the sighting. Sightings can be submitted until 30 October 2023.

Instructions for submitting sightings(Link leads to external service)