All birds are different and no one can predict exactly how they will behave.
Although your friend's conure has been shown to be very friendly with other birds, it is a much larger bird than your budgies and could easily severely injure or kill one of them if provoked.
Budgies don't know their own size and their behavior may be annoying to birds of another species.
I certainly wouldn't consider allowing the budgies out with the conure unless they've been acclimated to his presence with the cages next to one another for a few days and then ONLY under the strictest supevision.
The bottom line is how comfortable do you feel in taking such a risk with your budgies well-being?
I, personally, would not be willing to risk it with my budgies.
Although your friend's conure has been shown to be very friendly with other birds, it is a much larger bird than your budgies and could easily severely injure or kill one of them if provoked.
Budgies don't know their own size and their behavior may be annoying to birds of another species.
I certainly wouldn't consider allowing the budgies out with the conure unless they've been acclimated to his presence with the cages next to one another for a few days and then ONLY under the strictest supevision.
The bottom line is how comfortable do you feel in taking such a risk with your budgies well-being?
I, personally, would not be willing to risk it with my budgies.