Black bear
budgies
You can keep a horse in a livery yard,a back garden may not be big enough.
Depends how big is your garden ;)
Kill the ants in your back yard.
budgies are ment to live inside but some don't but if you want to know where to keep them you keep them in a cadge usaly in the living room, kitchen, hall, bedroom or a study.
Seeds can take many hours to grow in your garden. You should keep checking back to your garden often.
it does not make any difference
yes they can. i keep one in my back garden in a rabbit hutch.
Yes, but you'd better keep them in a cage or they will be a pest.
yes they can as long as you watch them and dont keep them in there overnight
Plants in your garden can take many hours to grow. You will need to keep checking back to your garden.
It depends on the behavior of your budgies. If they are aggressive or like to stick around by the 2 mating budgies, I would suggest separate them because the female won't be comfortable with the distraction of the other 2 budgies. However, if the other 2 rarely come by the 2 mating budgies or completely ignore them, I suggest keep the two there.