We have 2 Basenjis 4 years old. Our neutered male, Buddy is becoming aggressive. He has always been somewhat food protective but now it is turning into any time he doesn't get his way he gets extremely angry and bites. He has had obedience training and in many ways is well trained for a Basenji but this one area concerns us deeply. He and the female, Riley are a typical Basenji couple, they don't really know who is alpha. They play but have squabbles that never seem to get too serious.
We live in Minneapolis and when weather permits we spend 1-2 hours at the dog park. Buddy plays well with other dogs. However it has been so cold we can't spend much time out doors. Could that be a factor in hio behavior and if so, how can we moderate it?