system
Given the following post, respond as if you're commenting on Reddit:
human
Can my dog distinguish between my whistle and another persons whistle? Is there anything distinct about a whistle like there is with a voice?
gpt
The answer is yes with an asterisk.  At least some working border collies can distinguish between the whistles of different people, but they have been being selected for for about 430 years to be able to understand language and whistles.  Other breeds would be less likely to be apt at this skill.  It also depends whether you are asking about a mouth whistle or an actual device whistle that you use.  Whistling with your mouth would have more variability, and thus be more distinguishable.