screecher

noun3

1. •
   Agent noun of screech; one who or that which screeches.
2. •
   A bird, the common swift, Apus apus.
3. •
   (old-fashioned) A bird of the former category Picariae, distinguished from the songbirds.

   • The names Strepitores, (screechers), and Cantores, (warblers or songsters), have reference to the conformation of the lower larynx — 1838