Bert Willaert / Falconer showing his juvenile Red-backed Shrike (Lanius collurio) used to catch birds of prey for domestication, with eye hood, Georgia, September 2011. No release available.

Bert Willaert / Sparrowhawk (Accipiter nisus) being caught by a falconer using a Red-backed shrike (Lanius collurio) as bait, Georgia, September 2011.

Bert Willaert / Juvenile male Caucasus viper (Daboia raddei / Vipera kaznakovi), Georgia, September.

Bert Willaert / Hunter and his dog waiting for raptors to fly over, Georgia, September 2011. No release available.

Bert Willaert / Portrait of a Marbled newt (Triturus marmoratus), Portugal, April.

Bert Willaert / Composite image of American fish species introduced to Europe: Pumpkinseed sunfish (Lepomis gibbosus, left), Brown bullhead (Ameiurus nebulosus, right) and Eastern mudminnow (Umbra pygmaea, under), ph...

Bert Willaert / Brightly Coloured Poison-Dart Frog (Oophaga sylvatica). Ecuador, South America.

Bert Willaert / Juvenile South American Common / Crested Forest Toad 1+Rhinella margaritifera 'complex'+2. Ecuador, South America.

Bert Willaert / Hognosed Pit Viper (Porthidium nasutum) coiled. Ecuador, South America.

Bert Willaert / Trivandrum / Golden Frog (Hylarana aurantiaca) looking upwards. Western Ghats, India.

Bert Willaert / Male Humayun's Wrinkled Frog (Nyctibatrachus humayuni) calling next to egg clutches on leaves. Western Ghats, India.

Bert Willaert / Banded Ground Gecko (Geckoella deccanensis) portrait. Western Ghats, India, July.