Bird singing to ambient sound setting

[Dr Jones]

So very minor thing but I noticed the sound coming from the birds when idling in the Kerbal building overview (where you choose what building to "enter") the bird sounds are on the music slider in the settings while the ambient slider seems to do absolutely nothing there. It would be ok if the birds were doing something cool like Mozart or AC/DC but they're just annoying and I like the music in the rest of the game

Is this really intentional or could it perhaps be moved over to the other slider?