Duck
The duck was a type of aquatic fowl indigenous to Earth. A baby duck was called a duckling. A duck blind was a holographically masked observation post, a reference to a structure used by Human hunters to hunt ducks undetected.

The lyrics of "Oh My Darling, Clementine" mentioned the titular character driving ducklings to the water. ()

As a food, ducks could be eaten roasted. () 

In 2024 several ducks lived in a pond near Los Angeles. () 

Ducks were among the animals brought by the Bringloidi when they were evacuated from their planet by the  in 2365. ()

In 2371, the Farmer's Daughter tried to distract Harry Kim and Tom Paris by inviting them to see the duck pond. ()
 
In 2372, Captain Kathryn Janeway likened the constant minor attacks by Kazon raiders on Voyager to being "pecked to death by ducks." ()

Idioms
Several idioms refer to ducks.

Dead duck
Being a "dead duck" referred to someone's imminent death or defeat.

In 2268, James Kirk told the Beta XII-A entity it was a dead duck aboard the , as he and Kang's people had realized they could defeat it with peace. ()

When Voyager was captured by Kazon, Tom Paris sent a message to The Doctor on the emergency medical holographic channel and described himself as a "dead duck" if The Doctor wasn't receiving it. ()

Ducks in a row
Having one's "ducks in a row" meant they had things planned out and prepared.

In 2375, Admiral William Ross said that Wendell Greer had his ducks in a row, referring to the fact that he had been a low-level bureaucrat in the Department of Cartography for 15 years. ()

Sitting duck
Being a "sitting duck" referred to someone or something being completely unable to defend itself.

In 2154, Captain Jonathan Archer said that he wanted to get the 's engines back online so that it wouldn't be a sitting duck when Harrad-Sar returned to attack. ()

In 2285, when the Enterprise entered the Mutara sector, they were engaged in combat by a Klingon Bird-of-Prey commanded by Kruge. During the attack, they lost control of their ship and Kirk said: "So, we're a sitting duck." ()

In 2367, Wesley Crusher was concerned that the Enterprises saucer section was a sitting duck after being disabled by a Borg cube. ()

In 2371, Chief O'Brien furiously told Michael Eddington that by sabotaging the , Eddington had turned them into sitting ducks for the Jem'Hadar. ()

In 2372, following an attack by Kazon raiders, Chakotay described  and its crew as sitting ducks. ()

In 2373, Captain Benjamin Sisko told Jadzia Dax that the Defiant would be a sitting duck if they hadn't finished laying the minefield before the imminent arrival of Dominion forces. ()

In 2374, Major Kira Nerys told Sisko that the Defiant was a sitting duck for Jem'Hadar attack as long as they remained tethered to the miniaturized . ()

External links
 
 

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Earth animals
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