Re: A visit to Bulgaria (May/June 2012)
Posted: Tue Jun 26, 2012 11:48 am
For Jeroen
Ilian Velikov wrote:By the way, can anyone tell which Anguis these two are supposed to be? They are from the north-western part of the country.
"out of season" calls have been interpreted as guidance for migration towards suitable foraging and wintering habitats
Sandra Panienka wrote:they are stimulated by the noise of helicopters, airplanes or something similar.
Sometimes just one frog starts and the others join in for a while and then they go quiet again.