1.6.06
Pikkukäpylinnun kannanvaihteluista - On population biology of Common crossbill

Mr. Teuvo Hietajarvi (in front) talked to the Japanese guests about population biology of Common crossbill (Loxia curvirostra). Teuvo is under Scots pine tree in which he had found a nest of crossbill. Currently there were 4 chics in the nest.