What is collective noun of hungry children?

There isn't a single, perfect collective noun for hungry children. However, here are a few options that work depending on the context:

Formal:

* A brood of hungry children (implies a large family)

* A gaggle of hungry children (suggests a group of young children)

* A swarm of hungry children (emphasizes the large number)

Informal:

* A bunch of hungry children

* A pack of hungry children

* A crew of hungry children

You can also use a descriptive phrase, like:

* A group of ravenous children

* A horde of famished children

* A crowd of starving children

Ultimately, the best choice depends on the tone and imagery you want to create.