Fending off the strays

Not having too many problems with Hannah now. Just having problems with the neighbourhood strays that have become extremely interested in checking Hannah out. I’ve got four dogs practically camped out in my yard during the day waiting for me to bring Hannah out.
Since Hannah hasn’t been spayed yet, I’m not letting her anywhere near the other dogs, so that means I’m spending my time fending them off while waiting for Hannah to do her business outside. Forget about doing any training in the yard either.
Sheesh. This fostering thing is turning out to be harder than I thought.