Head Movement Question.

[Slim]

They CAN hear airborne sounds, actually, they're just not as sensitive to it as we are.

Your own source material states that the auditory system in Boidae (most similar to Pythonidae) is limited to a range band of 150 Hz to 600 Hz, and that there is a U-shaped curve along that range where there is a distinct, best frequency....In humans and mammals, we would identify that range of hearing as being effectively deaf.

I have done anecdotal testing with my own animals, and I can assure you that my BPs do not react to airborne sounds higher on the frequency range than those which can be felt through their jaw bones i.e. very low frequency.