He looks gorgeous, and could almost be an English cocker, so I wonder if he was taken out there originally by a Brit, with the intention of using him for breeding? I ask this as my own rescue cocker, Twiggy, who I took on in Bulgaria, was actually brought out from the UK by someone who wanted to use her for breeding, and then dumped her in a friend's kennels when she either didn't perform, or he grew tired of having to look after her.
I don't know what Hungarian cockers look like, but certainly the Bulgarian cocker spaniels seem to look more like American cockers than English, which is why I was wondering this.