Half of ICHN-Bages people in the oak wood of Les Teixoneres, in Natural Park of Sant Llorenç del Munt i L’Obac (Bages), in 16-04-2011, after the sprout of new leaves of the oaks. [photo Jordi Badia]
Further data in Espai de les sortides naturalistes de la ICHN-Bages and in Notícies de la ICHN nr.95.