"Great horned owls find their voice while they are still doubled over in the dark of their moon-shaped egg. Having punctured the small air cell inside the egg’s membrane with their budding beak, the proto-owlets inflate their lungs and start chittering. To each its private void, in a confinement growing tighter the bigger they get. If a spectral sound is supposed to come from beyond the grave, what word might characterize the babble of embryonic life, the noises of beings too tenuous to out themselves from their shell?"

https://www.theatlantic.com/magazine/archive/2023/09/owl-senses-smart-animal-intelligence/674769/