[T]he thwarted Hawk circled above, calling shrilly.1948, Alec H. Chisholm, Bird Wonders of Australia, page 96:
Anyone who denounces violent self-defense against the Jew is a coward. He may know the crimes of the Jew, but subconsciously he knows that ACTUALLY taking action would mean sacrificing the bread and circus. It might mean that he won’t live comfortably anymore. This is one of the reasons cowards so shrilly screech that Brenton Tarrant and Robert Bowers were Mossad false flag operations.2019 April 27, John T. Earnest, An open letter [so-called Earnest Manifesto], margin number 33:
shrilly
adj
Etymology From shrill + -y.
1
Somewhat shrill.
The night—its silence—its rest, was rent in twain by a savage, a sharp, a shrilly sound that ran from end to end of Thornfield Hall.1847, Charlotte Brontë, Jane Eyre:
Yet there they sat, as stones, silent and still. / Sudden a voice, a feeble shrilly voice, / Rose from the inner tent […]1860, Robert Stafford, Enoch, a Poem in Three Books: