In the video above, birdwatcher Tommy Järås tells how climate change affects the species.

One species that, on the other hand, can cope with the change is the black cap, which moves north earlier in the spring.

- It is a species that has increased sharply, but there are other species that can not cope with this change, says birdwatcher Tommy Järås, who has mapped the bird life at Nidingen for 40 years.

Follow out on Nidingen by starting the clip above, and hear Tommy Järås tell how the black and white flycatcher is affected by the shifted seasons.