Sessile oaks Quercus petraea, Slovenian Karst, December 2016. |
Corylus avellana, Slovenian Karst, December 2016. Hazel's catkins (male flowers) begin to appear in sunny oak woodlands across the Karst. |
Hawfinch Coccothraustes coccothraustes, Slovenian Karst, December 2016. In Karst's woodlands is common in winter as it is in spring. Small flocks regularly visit bird tables and feeders in gardens. |
Andricus lucidus, Slovenian Karst, December 2016. One of the several galls made on oaks in Karst's woodlands. This one was on a sessile oak Quercus petraea. Recently I've been observing more accurately the galls encountered on oaks and trying to ID them, so I'm getting the grips with cecidology. |
Andricus caputmedusae on sessile oak Quercus petraea, Slovenian Karst, December 2016. Another frequent gall on oaks; perhaps the most common here after Andricus quercustozae which is most frequently seen on downy oak Quercus pubescens. |
Neuroterus quercusbaccarum, Slovenian Karst, December 2016. Another gall, especially common on leaves of Turkey oak Quercus cerris (as above) - easily seen in late autumn on dry leaves on the ground. |
Dolichomitus mesocentrus, Slovenian Karst, November 2016. A parasite wasp (Hymenoptera) that probably does what Attenborough says in the second part of this video (min 3.58) - he will certainly explain it better than me. |