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Solskinstjørni
Solskinstjørni in Osa, just above Haugen farm in Norddalen, is visible only now and again, seemingly always for a period of good weather. Then it disappears abruptly, but its disappearance is not connected to weather conditions.
Herlandsnesjane
Herlandsnesjane, a four-kilometre long peninsula in Lake Storavatnet in the middle of Osterøy, is well known among botanists. Here lies an unusually large and diverse bog.
Storavatnet- Red-throated diver
The troll-like sounds from the Red-throated diver carry long distances between the mountains around Storavatnet. The high-pitched, haunting screeches on quiet evenings in May are a sign that the mating season has begun.