He said conservationists need more surveys, more information and more time to understand how to best protect the hedgehog population, and added: "We can't do this if the car park becomes a 24/7 hub for construction."
ZSL London Zoo has urged Londoners to "join the fight to prevent HS2 taking over the hedgehogs’ home" by tweeting @zsllondonzoo using #TeamHedgehog ahead of the select committee meeting next week.