if it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck

== English == === Alternative forms === if it looks like a duck, swims like a duck, and quacks like a duck, then it's probably a duck === Pronunciation === === Proverb === if it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck A subject can be identified by observing its habitual characteristics. Synonym: when I see a bird that walks like a duck and swims like a duck and quacks like a duck, I call that bird a duck ==== Related terms ==== ==== Translations ====