Hairy Maclary and Zachary Quack is a children's book by Lynley Dodd about the reluctant dog Hairy Maclary being persistently followed by a determined duckling named Zachary Quack, leading to a chase that ends with them napping together after Zachary helps a soggy Hairy Maclary out of the river. It's known for its rhyming text, lively illustrations, and is part of the popular Hairy Maclary and Friends series.