The seven-year-old, a spayed female, is the owner's "best friend" and the pair have hardly been separated in six years, she said.
Bambi is a shy dog and likely to run away if she feels intimidated.
Her sighting Sunday was in the Wilmot area of Eastchester, behind Lord and Taylor on Route 22.
Bambi was also seen near Wilmot Road, California Road and Lake Isle Country Club, her owner said.
She went missing Oct. 10 by Immaculate Conception Church in Tuckahoe.
At the time, the dog was being cared for by another person, not the owner. She was let out without tags or a collar, according to the owner who is offering a reward for her safe return.
Bambi's owner is appealing to the public, asking anyone who purchased a dog matching her description to contact her. The family will match the price of the purchase if Bambi is returned to them.
Anyone with information is asked to call Patricia at (914)-787-0112.
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