June 2011, we decided to make a short trip of five days, in two hotspots of spanish herpetofauna. The first, in the north of Burgos, is known for the presence of three species of Vipera in a very small aera, with hybridizations included! The second is Peña de Francia, where we expected Iberolacerta martinezricai, the rarest and most difficult to find spanish Iberolacerta.
Wednesday, June 1 – San Sebastian
On the road, we make a first stop in the Spanish Basque country. The opportunity to enjoy numerous and very typical Podarcis liolepis sebastiani, with different form those found in some areas on the French side.
Friday, June 3 – North Burgos
The north of Burgos is an incredible interface of many climates and environments, which leads to the presence of many species. For example we found Salamandra salamandra bejarae, Alytes obstetricans, Pelophylax perezi, Anguis fragilis, Chalcides striatus, Lacerta schreiberi, Timon lepidus, Coronella austriaca, Vipera aspis zinnikeri, Vipera latastei. We also find some individuals of hybrid aspis / latastei … Not easy to decide between the different forms!
Saturday, June 4 – North Burgos -> On the road to Peña de Francia
In the morning we keep visiting to the area of Burgos, with much success. But the weather changes quickly and inviting us to go to the south, and to quickly reach Peña de Francia. A trip is richly rewarded, because this is finally the opportunity to observe Iberolacerta martinericai, that we never managed to find so far!
Sunday, June 5 – Peña de Francia
The evening before was too short to achieve the desired photos, so we decided to return the site to spend the morning. The opportunity to observe lot of adults, including large males. Unfortunately, it is already time to go, and we return during the afternoon to Burgos, where we spend the night before returning to France …
Back to Burgos, some new snakes were waiting us along the stone walls!
Salamandra salamandra bejarae
Reptiles (13) :
Podarcis liolepis sebastiani
Podarcis liolepis robustus
Podarcis guadarramae lusitanicus
Vipera aspis zinnikeri
Vipera aspis / latastei