A smacking or "clucking" sound is produced when the animal moves its jaws and lips.    From Wordnik.com.  [Common Diseases of Farm Animals] Reference

When a hen wants to sit, she makes a particular kind of clucking, and goes to her nest.    From Wordnik.com.  [The Book of Sports: Containing Out-door Sports, Amusements and Recreations, Including Gymnastics, Gardening & Carpentering] Reference

John Allandale made a "clucking" sound with his tongue.    From Wordnik.com.  [The Story of the Foss River Ranch] Reference

'clucking', as well as the shame of 'pin holes' and 'track marks' in her arms.    From Wordnik.com.  [Home] Reference

(Soundbite of clucking) MONDELLO: Adorable, right?.    From Wordnik.com.  ['Despicable Me': Oddly Adorable] Reference

I have had the same experience with clucking-hens.    From Wordnik.com.  [Lola or, The Thought and Speech of Animals] Reference

Old Mother Wyandotte was right near them, clucking in fright.    From Wordnik.com.  [Seven O'Clock Stories] Reference

The voice somewhat resembles the cackling or clucking of a hen.    From Wordnik.com.  [Birds Illustrated by Color Photograph [April, 1897] A Monthly Serial designed to Promote Knowledge of Bird-Life] Reference

Rudy makes a chicken clucking sound and Oscar laughs through his nose.    From Wordnik.com.  [Leche] Reference

(Soundbite of chickens clucking) SIMON: Is that Yiddish they're speaking?.    From Wordnik.com.  ['Beautiful Yetta': A Yiddish Chicken With Chutzpah] Reference

Erculio let out a laugh that sounded more like the clucking of a chicken.    From Wordnik.com.  [The Saracen: The Holy War] Reference

(Soundbite of chicken clucking) Mr. DEAN: (as Jim Stark) Is that meaning me?.    From Wordnik.com.  [Oafs, Cheaters And Jerks: Film's Worst Boyfriends] Reference

La Gunn makes his rounds, clucking here and there over everyone's creations.    From Wordnik.com.  [Holly Cara Price: Rubbernecking: Project Runway Episode 4, "Hats Off To You"] Reference

She ran about clucking and collecting motor-cars, camel transport, anything.    From Wordnik.com.  [Pan-Islam] Reference

He stood there clucking like an old hen with no family but a brass doorknob.    From Wordnik.com.  [Inside John Barth] Reference

Tilia pushed past him, whistling and clucking to the pigeons and calming them down.    From Wordnik.com.  [The Saracen: Land of the Infidel] Reference

There was silence for a few seconds, except for the startled clucking of the fowls.    From Wordnik.com.  [Jokes For All Occasions Selected and Edited by One of America's Foremost Public Speakers] Reference

Billy stood there, silently moving his head forward and back like a clucking chicken.    From Wordnik.com.  [Man Loses Life] Reference

Presently he heard Jerry, up in front, hooking on the chain and clucking to the horses.    From Wordnik.com.  [David Lannarck, Midget An Adventure Story] Reference

It's a safe bet that Hong Kong's poultry markets will be clucking again in a few months.    From Wordnik.com.  [The Sky Is Falling] Reference

As they left the clinic, they could hear the echo of the chicken's clucking behind them.    From Wordnik.com.  [Twin Moons] Reference

Soon every chicken baby was hidden from sight and the chicken mother was clucking less loudly.    From Wordnik.com.  [Stories of Birds] Reference

The interviews don't always fly? but the clucking, bullying, bickering characters are irresistible.    From Wordnik.com.  [Ronna and Beverly] Reference

"If you find any," he said, swinging the cultivator back into place and clucking to Solomon to go ahead.    From Wordnik.com.  [Rainbow Hill] Reference

Presently, when the chickens came clucking, she went to mix their meal as usual, very pale and dolorous.    From Wordnik.com.  [Lippincott's Magazine, Volume 11, No. 26, May, 1873] Reference

The last jays and the first owls call from treetops as clucking blackbirds signal lockdown for creatures of the light.    From Wordnik.com.  [Country diary: Wenlock Edge] Reference

(Soundbite of chicken clucking) Mr. JOHN INGRAHAM (Microbiologist): It means they've laid an egg and they're cackling.    From Wordnik.com.  [With Salmonella, It's A Chicken-Or-Egg Conundrum] Reference

They were forced to listen to sympathetic clucking from, of all people, the prime minister of recently basket-case Britain.    From Wordnik.com.  [A Delicate Imbalance] Reference

There was much clucking in the workroom over the fact that Jason basically just took Andy's kimono and turned it backwards.    From Wordnik.com.  [Una LaMarche: Project Runway Season 8 Premiere Recap] Reference

There's always one sanctimonious, self righteous, clucking hen determined to throw down the racism card at the first opportunity.    From Wordnik.com.  [England v Hungary - as it happened] Reference

A half-grown chicken, startled by his silent approach, sprang out of the hedge and fluttered in front of his wheel, clucking madly.    From Wordnik.com.  [Jack of Both Sides The Story of a School War] Reference

Edi Kante's winery looks like the Old West, with piles of rock scattered about and a flock of chickens clucking behind a wire fence.    From Wordnik.com.  [Michael Tulipan: My Secret Travel Spot] Reference

The green hills around were enlivened by the clucking of partridges among the bushes, and the olive-trees by the cooing of doves.    From Wordnik.com.  [Byeways in Palestine] Reference

Woodward's admission, along with an unusual apology, set off a wave of journalistic clucking among news organizations, including his own.    From Wordnik.com.  [Sources of Confusion] Reference

A one-hundred-fifty-watt bulb illuminated the interior of the chicken house to the discordant clucking and cackling of the puzzled birds.    From Wordnik.com.  [Make Mine Homogenized] Reference

Workmen who dug about it to-day found a chicken coop, and in it two chickens, not only alive but clucking happily when they were released.    From Wordnik.com.  [The Johnstown Horror!!! or, Valley of Death, being A Complete and Thrilling Account of the Awful Floods and Their Appalling Ruin] Reference