We have 6 dogs: 2 dogs & 4 bitches. We try and alternate dogs for a couple of weeks at a time - 2 in the house, 4 in the runs/kennels. When it's season time (and fortunately, we have 2 girls in season together, then a break of 4-6 weeks, then the other 2 in together). When the girls are in season, we keep the boys inside, take them out the FRONT door and front fate, and walk them UP the lane. The girls get taken out the BACK gate, and walked DOWN the lane. This does seem to keep some of the pressures off the boys, to scent everything - they still serenade them, in the way that only Aussies can, yodelling and who-hooing for as long as they can get away with ;) - and they LOVE to visit the kennels & runs when out in the garden - think they have the equivalent of flowers/bottles of champers/choccies etc - and are thinking of tunnelling in ;)
Working so far (she says, crossing fingers and everything else

)
Margot