Spring
The skylark starts to warble. The adder looks for a sunny spot where it may build up some body heat. Initially, only the males - the females arrive in April.
The major moorland burnings usually take place in March – then, the faded grasses and heather are sufficiently dry, and the breeding season has not yet begun.
The rose of the moor, the spring pasqueflower, blossoms. You now have the chance to see migrating cranes, when the trumpeting of the cranes mixes with the melodic flute of the curlews across the moor. And now you are most likely to observe adders when they sunbathe in a sun-drenched spot or, if you are lucky, you may cross through an area where adder males fight about the females. It is time to collect the catkins of bog myrtle used for making spicy schnapps.
The blueberry flowers and its small, unremarkable flowers reveal that it belongs to the heather family. In many places between the heather, the very yellow flowers of the thorny petty whin light up - it is reminiscent of a mini broom flower.
The red-backed shrike has arrived and may be experienced along the edge of the moor. The enormous bird choir picks up, amongst others the cuckoo in early May.
Summer
Fawns have been born. Mountain tobacco blossoms - especially in the burnt-off areas where mountain tobacco really thrives. In many areas of the moor, the spotted orchid blossoms and the beautiful pink flowers of the cranberry may be enjoyed. The distinctive whirling of the nightjar may be experienced after sunset in the open areas around Syvårssøerne. The cotton grass of the fens is blossoming - it is said that the "underground people have hung their clothes to dry in the wind".
The insecticidal plant, sundew, may be found between tufts of peat moss in the small fens.
The berry season slowly picks up with the blueberries ripening. From the end of the month, crowberries, cranberries and bog whortleberries also ripen.
The mountain tobacco blossoms. The bell heather blossoms in slightly wetter locations.
It is the mating season of the roe deer and you can hear the roebucks bark.
"Blossoms the heather all the way to the top, the winter will arrive in a quick gallop," according to an old saying. The heather blossoms in August and so, in addition to enjoying the beautiful sight of the purple carpet, it may also be worth keeping an eye on how the coming winter will be.
It is high season for berry-picking. Crowberries, cowberries and bog whortleberries are ripe for the picking - you are permitted to pick and gather enough for your own consumption. The bell heather blossoms in the slightly wetter areas.
Kobjælde. Picture: Gert Hougaard Rasmussen
Fall
The mating season of the red deer begins, and they create muddy puddles on the moor where they come to roll. It is also possible to find traces of hooves, bitemarks in bark and branches, traces of scratching in the ground and red deer trails. Although the berry season is coming to an end, this is the perfect time for picking cranberries, which grow in wet areas, especially. In the plantation, you may find and gather edible mushrooms, such as chanterelles, the penny bun and the bay bolete. The cones of the bog myrtle are ripe and spicy and ready for the making of bog myrtle schnapps.
This is the last chance to pick cranberries.
And the last chance to experience adders as they go into hibernation when the temperature falls below eight degrees.
You may still see red deer and roe deer and you may occasionally hear cranes on the moor. On windy and cold days, it is nice to take a walk in the shelter of Frederikshåb Plantage where Syvårssøerne are always worth a visit.
Winter
The great grey shrike may be observed resting on the winter moor. Smaller flocks of cranes may be observed throughout the winter - their trumpeting will often reveal their location.
In the plantation, you may now collect mosses, lichen, mushrooms and more for Christmas decorations, spruce and cones may only be collected from the ground.
The goldcrests may be heard in the coniferous growths, and crossbill cut the seeds from the cones in the top of the spruces.
The winter landscape of the moor is something to behold with its mosaic of golds and browns created by the dry grass (wavy hair grass and purple moor grass) and its low bushes (heathers, crowberry, cranberry).
You may experience red deer (herds) of 20-30 red deer and herds of roe deer of 15-20 animals. The red deer start losing their antlers, which one may be lucky to find on a walk across the moor.