Zach has one friend in the SCP wiki, but damned if I can find where their work went.

Also known as ‘clowns’ from the Comoedia family, name and information provided through cooperation with PoI-90958 “Bambousio Starswinger”. The targeted specimens are a species of ‘wild clown’ that have not been domesticated. They are non-sapient, primarily scavengers, and avoid urban settlements. Behaviour-wise, they act similar to birds and sometimes feral dogs.

Male clowns reproduce asexually. Most wild clown populations are monosexual corydon comoedia colonies, and several dozen specimens can nest inside a single abandoned vehicle.