Nature Blog Network
Showing posts with label leopards. Show all posts
Showing posts with label leopards. Show all posts

Thursday, 12 February 2009

The CFZ solves another mystery!

And then, as if by magic, just when I had finished writing the previous blog, I got an email from a contact from the local news who said “One of our readers e-mailed me these this am. I’ve had a long chat with her and she is convinced they are a big cat’s prints. She heard a big “kerthump” as if it was jumping down. She has fields and woods around her and just three houses up there. Lots of deer in the fields. She is on the Cranmore side of Doulting. I said I would pass the photos on to you to see what you think. Her details are below and she is happy to talk to you. I have sent her copies of the stories we did as she had not seen them.”.


Attached were two photos, one showing the print, and the other showing the stride length. They looked pretty damn canine to me, but for a second opinion (always important) I passed them (again) on to Richard Freeman, who had this to say:

"These are clearly dog tracks. The concave shape of the main pad can be seen in the first photograph. Also, the toes are symmetrical and show the blunt claws of a canid. A cat's claws are finer and only seen in prints when unsheathed for a firmer grip on slippery or uneven surfaces. A cat's main pad has three bulges or lobes akin to the shape of a club in a deck of cards. The toes on a cat are asymmetrical unlike a dogs."



I don’t think I can add anything to that! Never mind, at least the CFZ now has a very good photo of what a dog’s print in the snow looks like!

I did have chat with the person who took the photos, and the fact that she lives next to a field in which a few dogs are walked closes this case. Apart from one thing: “She heard a big “kerthump” as if it was jumping down.”. This does sound a bit odd, until you realise that the prints were in her garden, and to escape the dog would have had to jump over the fence, creating the “kerthump” noise. Case closed.

But, the journalist who sent me this case also mentioned that she is “trying to check out the report from the lady from Cranmore who was saying she heard something big snarling in the bushes near her home last month.”. Now, as you can see, Cranmore is very close to the place where the lady found the dog prints. Naturally, I will keep you updated.

Wednesday, 11 February 2009

Cat prints? Not again...

It is now time to update on the hunt for alien big cats in the UK. Last time, you will remember I was told by a member on an invertebrate’s forum that her boyfriend had taken a cast of the print of an ABC, or so her other half’s mate said, in their local area. Naturally, I asked; “where is it now?” and the reply was “I don't think he has the cast anymore”. “Bugger!” thought I. Never mind, she sent me a link to a photobucket account where there were photos to look at instead. They looked like a good match for a cat to me and the size was well within big cat range. After forwarding them to Richard Freeman, I emailed Hollie, as her name turned out to be, who gave us permission to use the photos, and it is to her that I am very grateful for otherwise this extra evidence would not have come to light. The best photos are shown below.


Also, she said that her boyfriend (Dan) had “actually seen the cat one night when hunting up there, though it was it dark he says he remembers seeing a big pair of eyes, too big for any "normal" animal, and looked orange coloured apparently.”.

Now, it is time to explain this eye shine business. Eye shine is, obviously, caused by light entering an animal’s eye, reflecting out of the animal’s eye and then entering our own. The shine effect is from a layer of tissue called the Tapetum lucidum which is found in many vertebrate animals. Its function is to reflect light into the light sensing cells (Rod cells) in the eye to enhance night vision further. So, when a light is shone into an animal’s eye, you quite often see it shone back at you from their eyes as the light escapes from the lens and through the pupil. Carnivores possess a choroidal tapetum cellulosum which is made of reflective crystals, whereas artiodactyls and perissodactyls have a choroidal tapetum fibrosum made of extracellular fibers. So, these two different reflective layers give different eye shines.

Eye shine varies between different animals, but it is not an exact science. Cats usually have green eye shine (domestic), as do deer, but dogs can vary from green to yellow and to orange, depending on breed. However, a number of reports say that big cats like leopards have orange eye shine, which completely confuses the matter! I must say this subject has been hard to research; everything contradicts everything else!

Then, as if this wasn’t good enough, Hollie spoke to her boyfriend, who said that his mate still had the cast, and that we were welcome to have it for a bit! This is excellent news, so we will have to sit tight and wait for Pat.

In the mean time, Richard got back to me to say this:

“Though I will reserve final judgement until I have actually seen the cast my initial feelings are that these are indeed cat prints. The toes are asymmetrical and lacking in visible claws. The central pad lacks the concave shape of a dog’s .The toes also appear to show greater flexibility than a dog's.”

He attached the following photos; the uppermost photo is of a leopard, whilst the other is of a puma’s print.




Now compare these photos to the cast photos above. Richard says:
“It could belong to a puma or leopard but I think it is most like a puma's with the wide toe pads. In fact the print reminds me of a Florida puma print I saw that had been cast from a track left in sand.”

I agree with him, but also the central pad in a puma is more compact than a leopard’s, very similar to the print in the photo.

For a further analysis, we will have to wait for the print to be delivered. Watch this space with bated breath! But may I just say again how grateful I am to Hollie for letting me look at the photos and for doing her best to help find the cast. If only everyone came forward with evidence!

Thursday, 29 January 2009

The Raven's Revenge

The Raven (Corvus corax) is, at a maximum of 1500g, Britain’s largest crow. It is an omnivore, but its specialty in Britain is scavenging from dead animals. Its size puts it pretty near the top (for birds at least) of the scavenging chain, and it can easily intimidate smaller scavengers like carrion crows into giving up the lion’s share of the dead animal. Since the 1500s it has been persecuted by Sheppard’s and gamekeepers for scavenging or eating young animals and by the late 19th century it was confined to the west coast where the craggy cliffs it nested on afforded it some protection. Only after the First World War did the persecution slow and the Raven’s number begin to build up as it adapted again to tree nesting. Since then it has gone on to spread slowly inland, into Wales and Cumbria as well as making inroads into Devon. I had thought that the Raven was a species not really found in Somerset (where I currently live) and if it was at all to be found it would be far over to the west near Minehead and Watchet. I was, however, to be proved very wrong.

On Christmas Day this year, as you will remember, I was out and about doing some big cat research. After getting into the field, I saw coming towards me as I stood in the field was a crow, a “bloody huge one” if I remember myself muttering. Anyway, I carried on and ignored the bird. This was at the same moment that it flew past me and turned around over my head calling a deep throaty “prrrrruuuk”. “Raven!” I burst out. And indeed it was. Not just one, but four Ravens seemingly in two pairs.






After taking some photographs of them (as well as some rubbish video footage) I started thinking why were they here? Back at home I did come research on the subject, and found that Ravens are indeed found throughout Somerset, but they are few and far between with breeding occurring in Glastonbury’s Ham Wall reserve and across the Somerset Levels. Even though I had spend considerable time up at the killing fields, I had not noticed their presence at all, but seeing as on this day there was a freshly killed sheep, I am guessing they were in the area for this. The sheep’s eyes had gone, so one would suspect the Ravens of being the main scavengers of these from the kills. After following them for a bit on that first day, I found that one pair seemed to be spending a fair bit of time down on the quiet side of the quarry; it could well be that this is their perfect habitat: craggy cliffs for nesting, an abundance of food in the form of dead sheep, and no persecution. I for one am overjoyed at their comeback to Somerset, even if it is at the expense of a few sheep to keep them interested. Ravens begin nesting in January and lay their eggs in March, so it may be time to spend a while searching for their nest.




I have seen the Ravens twice in the four times I have been up there in the last month, however, I have not seen any sheep kills in this time (apart from possibly one) so it could be, as my best friend suggested when we went up for a look around early last week, that the cat has perished in the freezing temperatures that we experienced in late December. I need to get back to the field to see what’s changed, plus chase up the farmer and water board about the CFZ’s stolen trigger camera.


In other big cat related news, I was interviewed on Wednesday by the superb Geoff Ward who writes the “Mysterious West” page in one of the local newspapers. The interview will go up as part of his weekly podcast, and I (or more likely, Jon) will add a link to it when it is edited and published. I know full well I answered a few questions in the daftest possible manner (for instance, answering a question along the lines of “If big cats are comparatively numerous, why has no-one trapped one yet?” with “Well, in one night outside a large southern African city they trapped 27 leopards.” which means very little), but hey, it may just bring an extra bit of knowledge into people’s minds along with someone to contact if they do see something. It’s all about spreading the word...

PS, I apologise for this, but Fleur wanted to see some photos of me in my cat catching gear, but I only have one good one and im not even wearing my wide brim hat, but never mind: