Common Blue Rollers

A herd of Common Blue Rollers.

I first encountered this aggressive, introduced cart back in the fall of 2009. Know as an ambush predator, this herd (also know as a rollback) of Common Blue Rollers was remarkably calm - perhaps it was the poor weather that had driven them to seek shelter together.

You'll find Common Blue Rollers throughout North America - look for them lurking behind dumpsters and in ditches waiting for unsuspecting prey. Caution is advised when viewing them and approaching too closely is not recommended.

Detailed natural history accounts for species of other Vancouver Island carts can be found on my personal blog Island Nature.