On the first night I moved into Risdale Road in Ashton Vale I saw a hedgehog -biggest one I ever saw but was killed a few weeks later by a car. I moved to the current address in 2004 and I have posted regularly on the hedgehogs here.
On the first night I moved into Risdale Road in Ashton Vale I saw a hedgehog -biggest one I ever saw but was killed a few weeks later by a car. I moved to the current address in 2004 and I have posted regularly on the hedgehogs here.
People ask why it is important to find out whether Bristol University Mammal Study Group under Prof. Stephen Harris released mange into the Bristol fox population.
Throughout the 1970s and 1980s I never came across a fox with mange. It was not unknown but fox watchers treated as they could. Suddenly 1994/1995 and foxes are dropping all over the City with mange. Only 6% of the urban population was left.
There are problems here.
1. I cannot track down of widespread mange in foxes outside the City.
2. It was stated that a fox the Uni team were tracking "suddenly" left Bristol "for no apparent reason". A couple weeks later it returned as mysteriously with mange.
3. One tracked fox with mange would return to its former territory so you might expect a mange outbreak in one area and slowly spread out. This outbreak of mange hit the entire fox population and this is extraordinary and I can find no literature citing similar examples.
I wrote to Prof. Harris. I emailed him and even tried phoning him between 1997-2002 and never got a response to simple and polite questions. Over the phone I was told my message would be passed on. Nothing. In 2013 I again wrote a polite letter to Prof. Harris and...nothing.
Based on geographical and other obstacles as well as territorial behaviour I estimate that mange would need to hit north, south, west and eastern parts of the City to cause such an outbreak.
I wondered whether the weather might be a factor; weather in South-west England and the wider UK during 1994/1995 was notable for a transition from a very wet, stormy winter into one of the hottest and driest summers on record. The 12-month period from November 1994 to October 1995 was the warmest recorded in the Central England Temperature (CET) series, dating back to 1659.
Could that have been a factor? No idea since any records on the outbreak are not open to the public or naturalists.
There are too many unanswered questions and the truth -based on what is recorded- is that no one involved in Bristol University's fox study noted or mapped the spread of the outbreak but simply counted dead foxes.
All these questions SHOULD raise concerns amongst animal lovers or naturalists but it seems I am the only person who would like facts. Incidentally the Ministry of Agriculture Fisheries and Food (MAFF) and its successor Department for Environment and Rural Affairs (DEFRA) who SHOULD have had an interest in such an outbreak both told me that they had "nothing in the records" about the 1994/1995 outbreak.
Maybe I am just paranoid?
To start with; this is not an accusation but notes on rumours Bristol University will not respond to.
(c)2026 respective copyright ownerI have repeatedly asked Bristol University for access to its now defunct mammal group (led by Prof. Stephen Harris) papers on foxes. I either get silence or am told that I do not qualify for such access. The British Fox Study started in 1976 and continues today which, obviously, is far longer than the Bristol Uni study.
Most of the old Uni study data featured in books by Prof. Harris but a great deal remains archived (IF we believe what has been written).
Who funds Bristol University ?
Back in the 1950s the "big money earner" was going to be fox fur farms. In fact they were being set up back in the 19th century as commercial ventures.
Not very sanitary, often cruel 'entrepreneurs' found things were not as promised. Throughout the early to mid 1950s the fur farms folded. Was there massive blood letting as the unprofitable foxes were all killed?
The easiest way of getting rid of "stock" you did not want anymore was to just release them. No legislative control over releasing foxes and some land owners probably saw the extra foxes as more 'sporting fun'.
Did these North American Red Foxes (NARF) interbreed with new native Red foxes? Probably. I have shown before photos of over large foxes from parts of the UK that had traits of the NARF. Now of course we have the breeding and escaping Silver fox interbreeding with the Red fox.
What is the size difference between a bred for sale NARF and Red fox? I think the photo below demonstrates that. This image goes back 6 or 7 years and I believe is from a keeper.
I was once asked "how did the poor thing lose its tail?" when I posted this image.
The thing is that the fox had a perfectly fine tail but like many foxes was in the habit of curling its tail around one side. To prove the point here is the fox above about one minute later. Incidentally, the colouration indicates that it has melanism in its make up and this is becoming more common with grey and black coloured foxes being reported.
A few years back (2020/2021?) I was sent a clip and some photos of a fox with no tail. With foxes you expect a quarter or half a tail missing occasionally as they are not fast enough to avoid a car tyre. However, in this particular case the tail was gone. We call the bones that connect a fox's tail to its body are the caudal vertebrae; these vertebrae are the direct extensions of the spine, starting from the sacrum (the base of the spine near the hips) and extending down to the tip of the tail.

I've mentioned "Aunt" foxes before and how foxes living in a leash (a family group) help vixens out with cubs. Here is an explanation of one way they do that.
Vixens (female red foxes) acting as wet nurses is a phenomenon known as alloparenting or "helper" behavior—often occur in social groups where young females (typically daughters from the previous year) stay with the breeding pair to help raise the new litter. The hormonal mechanisms driving this behavior involve the same hormones responsible for biological motherhood, primarily prolactin and oxytocin, often stimulated by the presence of cubs and social factors.
Here is the breakdown of the hormonal role:
• Prolactin (The "Mothering" Hormone): High levels of prolactin are essential for initiating and maintaining lactation in mammals. In sub-dominant helper vixens, the presence of kits and the social structure of the den can trigger increased prolactin production, enabling them to produce milk even if they have not given birth themselves.
• Oxytocin (The "Let-Down" Hormone): This hormone triggers the contraction of mammary glands, ensuring the expulsion of milk during nursing. It is released in response to the tactile stimulus of nursing (suckling).
• Alloparental Lactation Stimulation: The "helper" vixen may be induced to lactate by the high levels of progestin (progesterone) and estradiol during the breeding season, coupled with the stimulation of seeing or caring for the cubs.
• Behavioral & Hormonal Bonding: The act of grooming, hugging, and sitting with the cubs is crucial for bonding and potentially triggers the necessary hormonal responses, including a decrease in the stress hormone cortisol, which helps the vixen feel comfortable nursing, even if they aren't the primary mother.
Apparently the Badger Trust is still pushing for a badger group in Bristol.
On the first night I moved into Risdale Road in Ashton Vale I saw a hedgehog -biggest one I ever saw but was killed a few weeks later by a...