Zaratii speaks to the Gold kin in Draconic. If the two-legs didn't bother to learn the noble language, they didn't get to understand what they say to each other.

"These ingrates are uneducated, sister. They know not our dignified tongue, nor even a dragon's egg when they see one. Or several. I indicated my own hunger and they seem reluctant to provide. I was considering simply killing and eating them, but there are some more at the mouth of our confines. More than a clutch of hatchlings could be expected to devour."

Then she returns her attentions to the humanoids and speaks in tongues.

"Dragons hatch hungry."

Again, minimal words. They had yet to prove to be worth more.