Police have warned people not to approach a group of 'very fast and aggressive' rheas that are running wild across two sleepy villages.
Hertfordshire Constabulary told members of the public not to go near the 20 ostrich-like birds in Maple Cross and Croxley Green.
The animals, which stand at 5ft and can reach 40mph, have been causing chaos across housing estates near the M25 for the last two weeks.
No, I promise, it's not an April Fool's Day post! Well, it is, but astonishingly, it's true...
Officers have searched for the owner of the birds but have now concluded they are wild.
Errr... Need an atlas, coppers?
Reports earlier this week spoke of one bird that went into Rickmansworth town centre and knocked on front doors with its beak.
"Could I interest you in the words of our Lord and Savior, Teratornis?"