This is a funny question that I just had to take a stab at! :)
I do not think it is actually the yawn that makes the noise, but most people stretch when they yawn. This is known as pandiculation. This is just a guess but when you stretch it tightens the vocal chords similar to the strings on a guitar. The yawn itself takes in air quickly which strum the chords (hope you can follow a metaphor, cause I can't think of how else to explain it) and produce the noise you hear when you yawn. This is why breathing alone does not cause the noise because the vocal chords are not tightened. Like if you were to try and play a guitar with very loose strings, it would make no sound. This is just a theory, but it is the best explanation that I have. :)
In take of air its common
When you yawn, your mouth makes a sound to releive the joy of yawning.
The typical written expression for a yawn sound is "ho hum."
Yawn
No but they make a noise that sounds like barking
Exactly how weird, and for how long? It is possible that you are unaware of something really odd or funny about your body movements or vocalizations when you yawn, and your daughter's weirdness is an attempt to stifle a reaction that she thinks might embarrass you. If that's the case, you have a chance to bond a little, have a laugh and a yawn or two, and maybe learn to yawn in a less, well, gaping manner? For some reason, your question really gives me a weird urge to see you yawn.
a weird noise
it makes a weird sound, thats all i have to say
Caw! That is if you mean the sound they make. They also have a weird sound for talking quietly to each other.
Moles don't really make sound but they might make kinda a little sound.
yawn
It depends. If it doesn't make you sound weird.