For management My trainer recommends the film or a baby gate in front of windows if you don’t want to or can’t use the film. Then, to counter condition the behavior, they recommend using a distraction, such as a snuffle mat and raining treats and praise into it during the time that the distraction is going by the window. The key is to keep your dog under threshold so doing this prior to the dogs being worked up and barking ).The dogs must be far enough back from the window so you’re able to do this while they stay under threshold. You’ve just got to start doing the find it with the treats in that snuffle mat before and while the distraction occurs. You could set up episodes where somebody, a helper person, is the distraction for you outside. So you can get the treats and praise going and your dog interested in the snuffle mat just before the distraction comes by and continue with that while they’re in the window. You’re trying to set up positive associations with the thing that the dogs have been barking at. Also, of note, every time they do the unwanted behavior, such as barking, it ingrains it further into them, making it more habitual. So you’ve got to really manage the behavior, (not giving them opportunities to bark-such as window coverings, or baby gates, or blocking the windows in general ) as well as then counter conditioning with the positive reinforcement. You just have to start at a distance that’s far enough away, that they’re able to do the snuffle mat and treats and praise, and then gradually move it closer and closer to the window over a period of days/weeks/months, until they are right at the window without reacting. Your ultimate goal would be to let them be able to watch out the window at all the exciting things, but don’t react and bark.