A juvenile European Goldfinch (Carduelis carduelis), seen in Diemerpark in Amsterdam. Juveniles are duller than adults and lacks face pattern. Soon though (~October), it will be one of the most colorful birds around. I will try to get a new picture then, to show what a big difference a couple of months make!
In the past, European Goldfinch’s populations declined due to illegal trapping for cage-birds trade and also by poisoning due to the pesticides. But now it’s a protected species and the populations are stabilized. I was happy to see a flock of ~20 birds the other day!