Nicole Kidman is so broody her friends have dubbed her "Miss Cluck." The actress has earned herself the mother-hen nickname because she is so desperate to give birth.

Nicole told Britain's Daily Mirror newspaper: "I am so clucky, but I have to admit I have been for years. My mates call me Miss Cluck."

"The Hours" star Nicole has been spending time with her "beautiful" eight-week-old niece, Sybella, in Australia - and this has reportedly heightened her desire to get pregnant.

The 38-year-old beauty adopted two children - Isabella, 16, and Connor, 12 - with ex-husband Tom Cruise. Tom is now married to actress Katie Holmes and the couple have a one-year-old daughter Suri.

Nicole married U.S. country singer Keith Urban last year.

The actress is currently filming "Australia" alongside Hugh Jackman.

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