However, some possibilities could be:
* A "flush" of robins - This is a commonly used collective noun for birds in general.
* A "rabble" of robins - This emphasizes the lively and energetic nature of robins.
* A "company" of robins - This emphasizes their social nature.
* A "huddle" of robins - This refers to robins huddled together, perhaps for warmth or protection.
Ultimately, the best collective noun depends on the context and the specific image you want to convey.