These include Vienna (capital of Austria), Bratislava (capital of Slovakia), Budapest (capital of Hungary), Belgrade (capital of Serbia), and numerous other large municipalities. Historically, the Danube was an exceptionally important river to the Greeks and Romans.
At that age, kittens are eating on their own and going to the bathroom on their own, so they can be away from mom for a day while she gets fixed. If mom is feral, when the kittens are 5 weeks old, that is the point when you can get mom spayed and release her right where you trapped her. Kittens can be safely fixed as soon a they hit 2-3 lbs., which is generally between 8-12 weeks.
Taming Ferals ! Kittens under 8 weeks can usually be socialized without much difficulty following the guidelines detailed below. Kittens over 8 weeks of age who've had no positive interaction with humans often take much longer to socialize. However, these same guidelines are often effective up to 6 months and often even with adult ferals.