Weazon

[A]lthough the vveazon, throtle and tongue [of birds] be the inſtruments of voice, and by their agitations doe chiefly concurre unto theſe delightfull modulations, yet cannot vve aſſigne the cauſe unto any particular formation; […]

For at the Throat there are tvvo cavities or conducting parts: the one the Oeſophagus or Gullet, ſeated next the ſpine, a part official unto nutrition, and vvhereby the aliment both vvet and dry is conveied unto the ſtomack; the other (by vvhich tis conceived the Drink doth paſs) is the vveazon, rough artery, or vvind-pipe, a part inſervient to voice and reſpiration; for thereby the air deſcendeth into the lungs, and is communicated unto the heart […]