A file photo showing an Egyptian vultures couple sent out by the Bulgarian Society for the Protection of Birds for the International Birds Day, marked on April 01 since 1906.

Dutch robot bird `Robird`, made by spin off of the University of Twente: Clear Flight Solutions, flies during a demonstration in Nijverdal, The Netherlands, Mar 31. The robot is used to scare birds away from airports and waste processing centers.

Germany`s Bavaria state Finance Minister Markus Soeder (C) poses with dogs from the local St. Bernard Dog Club, in Munich, Germany, April 01, 2016. On the occasion of the 125th anniversary of the club, Soeder took over the patronage for the around 1,000 m

Refugee children assist their disabled mother in the makeshift camp for refugees in the port of Piraeus, near Athens, Greece, 01 April 2016. A total of 5,377 refugees and migrants are currently at Piraeus port on March 31, 2016.

Demonstrators clash with riot police during a protest against the labor law reform bill in Paris, France, 31 March 2016. French students and work unions take to the streets to protest against a draft of a labor reform law.

Vojislav Seselj speaks during a press conference in Belgrade, Serbia, 31 March 2016 The UN war crimes tribunal for former Yugoslavia (ICTY) on 31 March 2016 acquitted Seselj of nine counts of war crimes and crimes against humanity.

A woman enjoys the view of the snow-covered Alps from a sunny mountain meadow near Ofterschwang, Germany, 31 March 2016. Warm winds have raised temperatures in southwestern Bavaria to over 20 degrees Celsius.