1. plural of oology; the study or collection of bird eggs, especially their structure, classification, and characteristics.
Usage: specialized field in ornithology and natural history; often used in academic or museum contexts

Examples

• The museum's oologies collection includes specimens from over 500 bird species.
• She pursued oologies as a way to understand avian reproduction and evolution.
• Victorian naturalists were particularly interested in oologies and egg collecting.
• The research in oologies has revealed important patterns in eggshell thickness across different regions.
• His expertise in oologies made him a valuable consultant for the ornithological society.