Birds of prey do not sing.

Understand the thought

Meaning in plain English

The saying contrasts birds of prey with singing birds. As an explicit analogy, a threatening role may be imagined as lacking the charm associated with a pleasant voice.

What the words are saying

The short negative statement gives a category one defining absence. A figurative reading can question whether an appealing display has become the sole standard for judging conduct. It should not assert an absolute biological rule or conclude that quiet people are predatory. The human analogy needs to remain clearly separate from literal animal behaviour.

Everyday example

Someone evaluates how a powerful participant treats others instead of judging the conduct only by a pleasant presentation.

When to use it

Use it only as a clearly stated analogy about conduct and appeal.

Agent-assisted editorial interpretation. This explains the words; it does not by itself verify their author or earliest origin.