From Longman Dictionary of Contemporary Englishhave eyes like a hawkhave eyes like a hawkNOTICEto notice every small detail or everything that is happening, and therefore be very difficult to deceive We never got away with anything in Mrs. Podell’s class – she had eyes like a hawk. → eye
Examples from the Corpus
have eyes like a hawk• My mother had eyes like a hawk.have eyes like a hawkhave eyes like a hawkNOTICEto be quick to notice things, especially small details → hawk 