I'm not sure what kind of hazels they are. It's whatever I bought at the market, same with the almonds. The almonds are from Turkey and I assume the hazelnuts are, too. They have a decent-sized nut, maybe 5/8-3/4" dia.
I noticed that the goats hadn't gone into the already-forested area (at least the seedlings there were fine) and the boar that had gone by earlier in the day hadn't touched them. So great for improving biodiversity and setting up a living seed bank, but not so good for reforesting the bare areas.
Kostas, I'll definitely have to try other varieties. Time to start saving seeds.