Pair of Red-shouldered Hawks

[D Mellinger]

This morning I heard a pair of 

Red-shouldered Hawks calling from trees near Woodland Meadows Park (the Corl House park) in Corvallis. It's relatively uncommon to hear them here - typically it happens once or twice a year- but I almost never hear pairs. But there they were, making quite a racket calling together. 

I was surprised there was a pair at this time of year. Do pairs stick together through the non-breeding season? Given that I haven't heard them much this year, I don't think they have a nest nearby (and I'd guess our nesting Red-tails would have driven them off), so I'm puzzled why there would be a pair here now. 

Dave