1. plural of coly; small African birds with long tails, also called mousebirds
Usage: ornithology

Examples

• The colies perched together on the acacia branch.
• Colies are known for their ability to hang upside down while feeding.
• The zoo’s African bird exhibit features several species of colies.
• Colies use their long tails for balance when climbing through trees.
• The ornithologist studied the feeding behavior of colies in their natural habitat.