I saw a dead fox in Cranston Road this morning at 8:15 - he looked perfectly fine, no blood - just dead.
So I reported it using fixmystreet in more hope than expectation and Lewisham had removed it by 11:11 this morning.
http://lovelewisham.com/Home/Details/97d24157-6b9b-404b-be8c-2187468ef2fd - contains picture of said dead fox.
Pretty good work I think.