Caption
Huge flock of Bramblings (Fringilla montifringilla) flying to roost in trees, Gorbeia Natural Park, Basque country, Spain, January 2011, unusual winter visitors pushed further south than usual by the harsh winter conditions of northern europe. Flocks of approx 2 million birds arrive to roost every night.
Availability
Only inBelgium, Canada, France, Luxembourg, Switzerland