Extinction Rebellion parked a four-metre tall ostrich statue outside the Conservative HQ in central London on Friday (December 6).
Activists can be seen in this footage wheeling the giant ostrich through the streets of Westminster and dancing outside Liberal Democrat and Conservative party headquarters.
Gully from Extinction Rebellion said: "The message is pretty obvious, we're bringing it around to every main party HQ today, we're bringing the message that they've had their head in the sand for far too long regarding the climate crisis.
"We'll be paying Boris [Johnson] a visit for quite a long time."
She described Conservative policies on climate change as "woefully inadequate".