The Last of the Summer Frogs

The wet season was very short lived this year. Within about two weeks of the only significant rain for the summer, most of the summer frogs had stopped calling. This was due to little follow up rain and the early onset of the colder weather. The numbers of several species was down significantly compared to the last few years. I would expect that the severe drought was the main contributing factor. On the other hand some other species have increased in numbers. At least the wet season did arrive and give an opportunity for the frogs to breed, even though it was for a shortened period. Hopefully enough have breed to boost the numbers of frogs back to similar numbers. During the few weeks after the rain many species were out breeding in good numbers so time will tell if the breeding season was long enough.

In the last few days before most of the summer frogs had stopped calling I went for a walk around the property. Most of the same species were sighted as in my last post except for the Northern Banjo Frogs, Dainty Tree Frogs and the Keferstein's Tree Frogs. There was a noticeable decline in numbers of  every other species that was sighted compared to the few weeks prior. I only took a few photos as it was getting late and I was determined to get a decent photo of the Tyler's Tree Frog for this season, which took quite a while.

A few Ornate Burrowing Frogs were spotted. This one was out in the open so it was easy to get a good photograph. As mentioned in other posts this frog can be extremely variable in colour/pattern and even skin texture. I have several, very different colours/patterns of these frogs on the property. This colour variation has been seen on the property before but is less common than the other colours/patterns found here. The shape of these frogs is quite distinct, along with the protruding eyes, but to be certain for identification, all specimens have a distinct plain circular patch between their eyes, on their back.

Ornate Burrowing Frog side view

Ornate Burrowing Frog top view, showing the circular patch between the eyes

I had to wade across the creek again to get to the Tyler's Tree Frogs. I could hear a couple calling from the house which is why I actually went out frogging briefly tonight. Luckily one of the two was sitting reasonably low on a branch, overhanging the water. It took quite a while to get a photo as I couldn't look through the eyepiece of the camera due to the height of the branch. I am concerned about the limited number of Tyler's Tree Frogs sighted and heard this year. They have only ever been heard in a small stretch of one creek on the property and only three or so were heard at one time this season. They were always in limited numbers on the property. About 25 - 30 individuals is the most I had seen and heard at any time, and most nights when they were active they usually numbered between six and twelve.



The left side of this creek is the only place the Tyler's Tree Frogs are found

Back view of one of the Tyler's Tree Frogs



The other specimen of the Tyler's Tree Frog



The same Tyler's Tree Frog as above



Tyler's Tree Frog calling

The Green Tree Snake below was in the same tree as the two Tyler's Tree Frogs. It would be one of the longest specimens that I have seen of this species. It would have been close to two and a quarter metres and had 6 distinct lumps in its belly. Most of these I presume would have been frogs. After the snake was in the tree I only heard the one Tyler's Tree Frog call out for the remainder of the night. Hopefully the Green Tree Snake didn't eat one.



Green Tree Snake

This is a recording of the advertising call of the Tyler's Tree Frog. The first frog heard in the recording is actually a Peron's Tree Frog and it continues to call throughout the recording in the background. The loud "laughing" frog in the foreground is the Tyler's Tree Frog. Eastern Sign-bearing Froglets can also be heard continually throughout the recording. They have the high pitched "eeek" sound. The occasional Eastern Dwarf Tree Frog can also be heard.

Several Peron's Tree Frogs were seen and many more heard but this was the only one that I could access easily to photograph. They look very similar to the Tyler's Tree Frogs and Roth's Tree Frogs. I get all three of these species on my property and all three are known as the laughing tree frogs. The Roth's can be easily distinguished from the other two species by the colouring of the pupil. To identify Peron's Tree Frogs and Tyler's Tree Frogs is more difficult as they are more similar in appearance. I find the Person's Tree Frogs here have a rougher textured skin and darker markings, but this is not always the case. The blotching and patterning can change between the species so this isn't a reliable way to identify them. The best way is to observe them calling as their call is the best way to identify them, which is what I do. The Peron's Tree Frogs also have tiny green specks scattered over the dorsal surface and legs. Sometimes these specks can be hard to see though.

One of the several Peron's Tree Frogs that were sighted

The same Peron's Tree Frog from above

Peron's Tree Frog

Tonight the big Green Tree Frog on the veranda didn't want to come out of his day time hiding hole.

The big Green Tree Frog

Tonight was the first time that I had sighted the Broad-palmed Rocket Frog this season. The quantity of this species on the property is always much less than the Striped Rocket Frogs but they can usually be seen most nights after decent summer rain. This was not the case this year! The Striped Rocket Frogs would have numbered many thousands on the property. Several hundred could be seen easily most nights after good rain in a small area whereas the Broad-palmed Rocket Frogs I would estimate in the low hundreds and maybe less. The most I have ever seen in one night would have been about 30 individuals.

Broad-palmed Rocket Frog

The same Broad-palmed Rocket Frog from above

The Broad-palmed Rocket Frog from above

The biggest decline in frog numbers I noticed this year was with the Rocket Frogs. Each night less than 150 Striped Rocket Frogs were found and significantly less where heard calling throughout the property compared to the last four years. For the entire year I only sighted two Broad-palmed Rocket Frogs on the property!! Hopefully this decline in numbers was just due to the drought and the numbers pick up again in the coming years if we get better rain spread more consistently throughout the summer. Nothing else has changed in the last two years like slashed areas of the property and the times when the property is slashed. I will get a better indication of factors that effect the frog populations, the longer I observe the numbers and species of frogs on the property, the weather, farming practices etc on the property. I have something very unique here and I do everything possible to help increase the populations of the native animals.

This is a recording of the advertising call of the Broad-palmed Rocket Frog.  A Cane Toad can be heard at the beginning of the recording in the background.

The Cane Toad was located and disposed of humanely. Very few are heard calling around the property now due to me gradually removing them over the last 4 years.

More pics and updates when more frogs are photographed and recorded.

The Rain Finally Arrives: 14 Species Sighted/Heard on my Property in One Night

This week the rain finally arrived. Over the 3 days my property had 401 mm. With all that rain the dams and creeks have filled and overflowed so the front of the property is once again under water.....a frog's heaven. I was a little concerned that few frogs had been calling for the first two nights after the rain but on the third night they appeared again in decent numbers. I have noticed a decline in numbers of many species so far. Hopefully the numbers of each species improves as the rain continues over the coming weeks.

The Roth's Tree Frogs have been sighted regularly on the veranda of the house over the last few months. They picked a good spot on the top rafter to watch the flooding unfold. I can't believe the colour variation between all three of these specimens. One is very pale cream with a couple of darker markings, one has several darker markings and one has a very mottled appearance. In fact it looks very similar to the Peron's Tree Frogs on the property.

The Roth's Tree Frogs watching the rain from the veranda

Great colour variation between all three Roth's Tree Frogs

Roth's Tree frogs have the upper half of the iris red and the lower half silver

Some of the Roth's Tree Frogs on the veranda

The Green Tree Frogs have increased in numbers over the last few years. Most nights now, between four and eight can be seen on the verandas. This specimen below is my favourite. It is the biggest of the lot at about 85mm in length.

Green Tree Frog

Front view of the big Green Tree Frog

After getting away from the veranda I made my way down to the dam. The first or should I say, one of the many initial frogs I heard was the Spotted Marsh Frogs. This is one of the first times I have seen them in this area. Usually they are confined to an area of the front paddock.

Spotted Marsh Frog calling

This is a recording of the Spotted Marsh Frog's advertising call.

I was really happy to hear Green Tree Frogs in the bush calling out as well. I could hear them in two distinct locations well away from each other. This is the first time I have heard them any real distance from man made structures here. To be honest it is only the second time ever I have seen them away from man made structures.

One of the Green Tree Frogs sighted in the bush

The Green Tree Frog pictured above was heading towards the area where several Green Tree Frogs were calling from. This is a recording of the advertising call of the Green Tree Frogs. You can also hear all the Graceful or Dainty Tree Frogs calling out as well.

 

 

 

Many Graceful Tree Frogs or Dainty Tree Frogs were calling out. Usually they don't call for long after the rain stops falling so I was lucky to get a recording of them as the rain had stopped several hours prior to me obtaining a photo and recording. There has been a noticeable decline in their numbers so far. This could change though over the coming weeks if the rain continues. They seemed to be limited to smaller sections of the property, where some water was still present or recently dried up. Usually they could be heard over the entire property during or just after rain, during a normal wet season. The long drought may have effected their numbers and distribution within the property.

 

  



Dainty Tree Frog

 

 

Dainty Tree Frogs are also known as Graceful Tree Frogs

Eastern Dwarf Tree Frogs were common over the whole property as well. It was noticeable though, compared to other years that the numbers of these has also seemed to have declined.

Eastern Dwarf Tree Frog

Striped Marsh Frogs were very common. Many could be seen hopping around in the grass and many hundreds could be heard in the water. They were breeding in huge numbers and spawn was very common in where they were calling. In a few places the noise was deafening.

One of the numerous Striped Marsh Frogs

 

 

This is a recording of the advertising call of hundreds of  Striped Marsh Frogs. Individually the sound is very different from this. A couple of Dainty Tree Frogs can also be heard throughout this recording.

Across one of the creeks that loops around where the island forms during flooding the Tyler's Tree Frogs and Peron's Tree Frogs could be heard. About three Tyler's Tree Frogs could be heard and about seven Peron's Tree Frogs. It is amazing that each year these two species arrive back in this small area within a few days of flooding rain. I didn't obtain any photos as the water was too deep to be wading through when it wasn't essential. It was about 1.2 metres deep but it was flowing. Within a few days it will be low enough to walk though at about 80 centimetres when it stops flowing.

I could also hear Verreaux's Tree Frogs calling out from the island. I have only seen one individual here before but it has an obvious call. I was pleased as there were two individuals calling out. It was directly across the creek from where I had sighted the specimen last year.


These Red Tree Frogs or Desert Tree Frogs were sighted near the house. This is common as usually they are all seen around the ponds, shed and house. During the drought many (approximately 30) plus a few Keferstein's Tree Frogs had moved into the water tanks. During a normal wet season they would be always seen around the house. I am pleased to say that only two were seen around man made structures so far since the rain. Most were sighted around the creeks, floodways and around the dams.

A Red Tree Frog enjoying some water in the rain gauge

This Red Tree Frog or Desert Tree Frog was on the veranda

One of the many Red Tree Frogs on the edge of the creek

This is a recording of the advertising call of the Red Tree Frog. The Eastern Dwarf Tree Frogs can also be heard calling

Striped Rocket Frogs were sighted in large numbers. I was hoping to see some of the Broad-palmed Rocket Frogs in the areas where they are usually seen but I was unable to locate any. In the places where the Broad-palmed Rocket Frogs are seen numerous Striped Rocket Frogs were spotted. Hopefully the others will show over the coming weeks. The Striped Rocket Frogs seem to push the Broad-palmed Rocket Frogs into a smaller area each season.

Striped Rocket Frog calling

Striped Rocket Frog from above.

This Common Froglet was sighted easily as I approached the dam. This was the quickest that I have found one. As I heard it calling I moved in and it continued to call. Usually as you approach they stop calling and move to a new location. Many could be heard around the dam. The Eastern Sign-bearing Froglet seemed to be much more prolific than the Common Froglet at this stage. As the seasons change the numbers of these two froglets can change significantly during a good wet season, so this may not be due to the drought. I could hear many of these calling out during the day in the front paddock as I left. Even though I could hear many more, I was unable to locate an Eastern Sign-bearing Froglet to obtain a photo tonight.

Common Froglet

A Common Froglet calling also known as a Clicking Froglet 

 

 

Some more pictures of the numerous Eastern Dwarf Tree Frogs.

 

 

An Eastern Dwarf Tree Frog on the sedge in the dam

A pair of Eastern Dwarf Tree Frogs in amplexus

An Eastern Dwarf Tree Frog calling from a lily pad

Another Eastern Dwarf Tree Frog calling from a lily pad

Another Dainty Tree Fog calling. This specimen and many others were near the other Green Tree Frogs that were calling out in the bush.

Dainty Tree Frog

This is a clearer but softer recording of the Dainty Tree Frogs performing their advertisement call. There were not as many present in this area so you can hear the call more clearly.

One of the many hundreds of Striped Marsh Frogs that were breeding in the creeks.

Striped Marsh Frog

I was really happy to see and hear one of my favourite frogs again, the Great Barred Frogs. I could hear them as soon as I walked outside. Their call carries a long way and is very distinct. They are a very predictable frog. They always appear a few days after flooding in the creeks and they are always within a 50 metre stretch of the same riverbank. I found about four tonight but could hear many others.

Great Barred Frog

As I was walking away from where the Great Barred Frogs are located I saw a huge frog jump by me. I thought it was a large Great Barred Frog by the size but it was in fact a female Wilcox's Frog. It is the largest specimen I have ever seen. It was an easy 7 centimetres in length. I didn't realise they grew so big. Within a few minutes I sighted another female nearly as big. I didn't locate any males all night.

A large female Wilcox's Frog

The same female Wilcox's Frog from above

The other large female Wilcox's Frog

In the front paddock I found many Spotted Marsh Frogs. This is the area where they are more common. When I first spotted this specimen I thought I had found the Salmon Striped Frog again on my property. I have many people doubt that I have ever sighted them here and some believe me but are sceptical. Luckily I have photographic evidence. Unfortunately this was not one. I thought it was as it was quite large compared to the normal Spotted Marsh Frogs and the orange stripes were very distinct. Also the body shape seemed more arched like the Salmon Striped Frog. Usually the Spotted Marsh Frogs sit flatter on the ground. A Salmon Striped Frog has another orange line coming out from the back groin up the belly, which this frog lacked, which is the most distinguishing feature of the Salmon Striped frog.





Large Spotted Marsh Frog



Side view of the Large Spotted Marsh Frog

 

More pics and updates when more frogs are photographed and recorded.


Another New Species for my Coles Creek Property

Several nights ago I heard a frog call out twice. It was close to the house, or on the outside wall of the house most likely. It sounded similar to a Person's Tree Frog but it was noticeably different. I got up to get my sound recorder but it didn't call again. I looked around and couldn't find the frog either.

The following night I was walking past the wall where I thought the frog was the previous night and I saw it briefly before it snuck up between some of the boards on the house. It looked a bit like a Peron's Tree Frog but it was a more consistent colour over it's body and it was much lighter.

Last night I saw the frog again and this time I was able to get some photos. I am extremely pleased to say that it is a Roth's Tree Frog. This is a new species for my Coles Creek property. I didn't think I would get them here as this area is about the southern most point of their range. This now takes the number of species that I have identified at my property to 27 and 20 of these species have been photographed for this blog this year. I am extremely lucky to have 27 species on a 45 acre block!!!


This is one of the four or more Green Tree Frogs that can usually be seen on the small veranda most nights of Summer.

Green Tree Frog

All of the photos below are of the same Roth's Tree Frog. I'm fairly certain that there are two of them and possibly even three.

Roth's Tree Frog

Roth's Tree Frog from above

At my property I get the two other species that look and sound quite similar to this species. People can have difficulties in identifying the differences between  Roth's Tree Frogs, Tyler's Tree Frogs and Peron's Tree Frog's. All of these can be seen on this blog. The colours of these frogs can change quite significantly from area to area, from day to night and even vary within the same area. I find that the Peron's Tree Frogs on my property, and generally in this area have splotches of darker colour through their skin colour as well as having numerous tiny green flecks over their body. This is not always the case though!! The eyes of Tyler's Tree Frogs and Peron's Tree Frogs have the cross shape pattern and the iris is a silver colour and has tiny black lines over it. Roth's Tree Frogs have a silver colour on the lower half of the iris and a red colour on the upper half of the iris. This is the most distinguishing feature of the Roth's Tree Frog along with the colouring on the inside of the legs and thighs.

The upper half of the iris is red and the lower half is silver with Roth's Tree Frogs

Roth's Tree Frog

The inside of the legs can be black to a bluish purple

You can see the colour on the inside of the legs in the photos below.  Tyler's Tree Frogs, Peron's Tree Frogs and Roth's Tree Frogs all have black and yellow on the thighs and inside the legs, toes etc. The main differences are that with Tyler's Tree Frog's the majority of the colour in this area is yellow with some black or dark coloured spots. With Peron's Tree Frogs the background colour is yellow and black is marbled over the areas and is in fairly equal proportions with the yellow. With Roth's Tree Frogs the black or bluish purple is more predominant with larger, regular shaped yellow patches.

A Roth's Tree Frog showing flashes of colour

The leg markings are more vibrant than the body markings below

The body markings are less vibrant than the leg markings above

The Roth's Tree Frog on the wall of the house

More pics and updates when more frogs are photographed and recorded.