Brighton and Hove Albion have been promoted – by the British Hedgehog Preservation Society.
The club has also been publicising the message to fans in match-day programmes and a staff magazine.
Even the club mascot Gully has got in on the act, posing for a pic.
The British Hedgehog Preservation Society said: “We have been chatting to all the English Premier League and EFL Championship football clubs.
“While there may not be many hedgehogs at the stadiums, there certainly will be in fans’ gardens.
“We’ve been delighted with the response, with some teams agreeing to hand out leaflets for Hedgehog Awareness Week (and) feature us in match programmes too.
“We have developed a Hedgehog Friendly League and currently top of the league we have Barnsley, Brighton and Hove Albion and Burton Albion.”
Hedgehog Awareness Week ends today (Saturday 6 May). For more, visit http://www.britishhedgehogs.org.uk.