This means you will have a very cold winter. Those berries are proportional to the cold of the winter, so the birds will survive. Many berries means cold winter.
I don't believe that the earth is very polluted. That's what everyone says, but the past winters were very cold in Netherlands and snow-free and cold in Moscow. Why should that mean pollution?
I didn't mean the earth as in the planet, I meant earth as in the ground. It's what trees and other plants do when close to death. They try to increase their chances of of passing on their genes by mass producing their seed. Though all other trees of this sort have alot of berries this year. Though I doubt it is a good way of determening if the winter will be cold or not.
I don't know... I know what you're talking about when you mean that plants start to reproduce themselves as hard as possible when they're dying, that's the same effect when you give a cactus from herbarium (means he was dead and without water for years) and he creates one last flower. And I do know that this specific tree makes many berries when a cold winter is coming. But I don't know what many berries at other trees mean. Meaby you're right and they feel their death coming...
I'm only critical of the cold winter theory because I don't see how a chemical reaction could be trigered in a tree if it is going to be cold in a few months. To me it sugests a non linear timeline. But if there is a logical explenation for them to grow more berries months in advance of cold weather I will gladly agree with you.
I don't know the explanation, it's just a folclore believe ([link]) that is believed in the North, including Russia, where I was born. But I don't know why it is that way, only that when I checked whether it was true by looking at the amount of berries and the temperature in the winter, it turned out to be true.
Ah yes, that is why I have trouble fully believeing in it, because it's folklore. I am familiar with it, I have lived in the north for 21 years now and I have heard all the weird stories about badgers biting people until they hear a crack or naked men playing the viloin in a stream. So you were born in Russia, that's interesting. How long have you lived in the Neatherlands?