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Showing posts with label Tiger_Snake. Show all posts
Showing posts with label Tiger_Snake. Show all posts

Thursday, January 03, 2013

Tiger Snake

Graphic Image Warning: - deceased animal photographed for educational purposes.
If you are unlikely to want to see these images, please come back to my Blog tomorrow.


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Tonight I received a call from a good friend saying that they had discovered a Tiger Snake inside their lounge room tonight, and that, naturally, the Snake had been killed.

Now I know not everybody will agree with this action, but even I, as a naturalist, can understand why a family with three kids in the house (2 visiting city kids) and 4 adults (2 city folks) and 3 dogs would take abrupt and decisive action to remove a venomous snake from within the house.

My position is that, regardless of whether or not everyone agrees, I can understand why this action was taken. But given that my involvement was "ex post facto", I might as well try to show something about how to identify a real Tiger Snake.

Hence this post.

This Tiger Snake was reasonably thin, but it was 90 cm long.
I have seen much thicker Tiger Snakes, but not many in Robertson. 


To see the details of these images better, please click on each image, to enlarge it. 

Fine markings (banding) of this Tiger Snake

Mouth open showing tongue.

Scale pattern on top of head


Upside down view of snake's mouth.
The fangs are just visible
protruding from the tissues of the roof of the mouth.
The tip of the tongue is also just protruding
from lower jaw.

Wednesday, November 24, 2010

Tiger Snake near Robertson

This story inevitably involves photos of road-killed animals. However, sometimes this is necessary for educational purposes. And so it is today.

Firstly, let me comment that this year, there is a lot of moisture about in the surrounding countryside, after a relatively wet spring. The amount of growth of plants is pretty remarkable. That also means that especially on flat plateau country, there is a great likelihood of ponds and small "runnels" holding water. That means frogs; and frogs mean snakes - especially in warm weather such as we have had in the last few days.

I have heard various stories of "Brown Snakes" in Robertson since my arrival here. I have never seen such a snake here. I did once see a small, pale (almost sandy-coloured) snake in the Banksia scrub at Carrington Falls, but whatever species it was, it was certainly not a "Brown Snake" (Pseudonaja textilis).

Yesterday, I saw the first "Tiger Snake" (Notechis scutatus) which I have seen in Robertson. It was dead on the road, at Lees Road, off Jamberoo Road. This location is above the top of the Illawarra Escarpment. But it is not as high as Robertson, which sits on a basalt ridge above the sandstone plateau. This snake was in a farming area, open grazing pasture land. There are numerous dams on the farms along this section of road. Snake heaven. I would never stop a Tiger Snake and ask it to pose for a photo. So that necessitates me photographing a dead specimen - when I find one (which is unusual).

This Tiger Snake was a little over a metre long.
Quite substantial, with a noticeably dark head.
In order to complete the set of common local snakes, I am going to show the most common snake of the sandstone plateau below Robertson. This Red-bellied Black Snake was freshly killed when I found it, adjacent to Butler's Swamp on Tourist Road, Kangaloon.

This snake was more than a metre long, and relatively slender.
I have seen much heavier Red-bellies than this one.
The largest Red-belly I have seen was outside the Tourist Road Oval.
It was as thick as my arm. Huge.Its head and throat were in good condition, so I took the opportunity to record the details of the scales and the colour underneath.

Red-bellied Black Snakes are always shiny.
There is just a glint of red visible
as the snake is lying on the ground.
But the shiny black scales are a give-away.
The large scale in the centre of the head is probably diagnostic.
But the rest of the snake is sufficiently diagnostic of itself.
The famous red-belly is seldom visible,
except on a dead specimen.
But this shot shows how beautifully the scales are laid out.
In Robertson itself, this is the most common snake:
the Highlands Copperhead.
This one was very much alive.
I used a long lens to catch this image.
It was more than a metre long.
This species is very variable in the Highlands.
Most that I have seen are a dull slaty grey.
But the face is diagnostic.
The light scales above its lips often give a striped appearance.
Check this previous post of mine about Copperhead Snakes.

As far as the local Copperheads are concerned, the name appears to be a bit of a misnomer. But across its range, this species is very variable.

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