
I’m finding the language of hens fascinating. Here are some of their sounds, from loudest to quietest:
AAAARRRKKK-ark-ark-ark-ark-ark – A long, very loud, drawn out call. Based in the back of the throat, employing the glottis between sounds. Often repeated for what seems a long time. The neighbours around the block will probably hear this one. What does it mean? Something momentous has happened. An egg laid. A major breach of hen protocol perhaps, such as another hen sitting on your egg or hogging the nesting box when you are desperate to lay your egg? These options seem likely, as the call tends to occur around the entrance to the nesting box. Many people say that this call is the hen announcing she has laid an egg. I’d say that is something to make a fuss about. Did you know the rounded end comes out first? Ouch!
SQUAWK! SQUAWK! SQUAWK! Loud, high-pitched and with a tone of panic. At this point, the hens are running in all directions, in a flutter of feathers, probably to evade something like this:

WWEERRKK! WWEERRKK! WWEERRKK! A loud, sharp sound. High pitched, almost a whistle. This call is accompanied by the neck stretched up, head swivelling like a periscope. It seems to indicate that the hen has spotted something out of the ordinary which may pose a danger. A warning call.
EK EK EK EK A quiet sound with rising inflection made as the chooks browse together or as they follow me about the garden. It is like a voiced question mark. I picture little question marks floating over their heads.
BOOK BOOK BOOK BOOK Mid-volume when running to see what I’ve brought them. Low volume when used in everyday activity such as scratching in the dirt, or grazing on the grass. Perhaps a contented sort of sound, or a “nice bit of earth here” moment.
MUTTER MUTTER MUTTER MUTTER Lowish in volume. Often with a rising inflection at the end, giving it a tone of peevishness or complaint. They make this sound when I’m getting them their morning mash or their evening mash or … anything, really.
Hens also do a kind of percussion. When they jump down from something such as a low wall, they make an echoey thud which reminds me of the settling of the voice box of a teddy bear when you turn it over to make it growl.
TRRRIIILLL TRRRIIILLL TRRRIIILLL My favourite call. Very quiet. Often overheard when they are settling for the night. Almost like purring. A quiet, calming sound.
Good night.