Webster’s Revised Unabridged Dictionary · 1913
Skirl
Skirl (skẽrl), v. t.& i. [Of Scand. origin, and originally the same word as E. shrill.] To utter in a shrill tone; to scream. [Prov. Eng. & Scot.]
Skirl, n. A shrill cry or sound. [Prov. Eng. & Scot.]