
Kentucky is home to many different frogs. Many of these frogs are entirely harmless. However, there is one species of poisonous frog in Kentucky – the Pickerel Frog.
Of course, these frogs are poisonous – not venomous. Therefore, you would have to eat it to be affected. Most people don’t go around eating random frogs, so humans typically don’t have anything to worry about.
There are about 23 different frogs and toads in Kentucky classified into five different groups. You can often get an idea of what species a particular frog is by knowing these groups. They are pretty distinctive from each other.
Below, we’ll take a look at some of the more common frog species.
The 19 Frogs Found in Kentucky
Poisonous Frog in Kentucky
1. Pickerel Frog
Species: | Lithobates palustris |
Longevity: | 5–8 years |
Good to own as a pet?: | No |
Legal to own?: | Yes |
Adult size: | 1¾ to 4 inches |
Diet: | Insects, spiders, invertebrates |
This is the only poisonous frog in Kentucky. It is recommended that you don’t handle it, as you may accidentally ingest some of the poison. For the most part, they are utterly harmless to people – you just don’t want your dog trying to eat it.
They are always a grey or tan color—never green—and have two rows of dark spots on their back.
They often prefer to live near ponds with dense vegetation.
The 11 Little Frogs in Kentucky
2. Eastern Gray Treefrog
Species: | Hyla versicolor |
Longevity: | 7 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1¼ to 2 inches |
Diet: | Insects and larvae |
Despite their name, this species ranges from brown to grey to green. They can vary quite a bit in coloration. Usually, they’re found up in the trees sleeping or singing. Their sticky pads allow them to climb up just about anything easily.
They are not found throughout Kentucky – just in a few counties.
3. Spring Peeper
Species: | Pseudacris crucifer |
Longevity: | 3 – 4 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1 – 1 ½ inches |
Diet: | Insects |
This is one of the smallest frogs around – only reaching about an inch. They are common throughout Kentucky and spend most of their time on the ground hiding. They are commonly found in leaf litter of all sorts.
While they are a frog, they spend much of their time on land. They only enter the water to breed or lay eggs.
4. Mountain Chorus Frog
Species: | Pseudacris brachyphona |
Longevity: | 5 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1 inch |
Diet: | Insects |
The Mountain Chorus Frog has a range that covers eastern and southern Kentucky. They are not usually found in water, preferring woodlands instead.
They usually range from tan to light brown, with darker brown markings found across their body.
This is a relatively small species.
5. Eastern Narrow Mouth Toad
Species: | Gastrophryne carolinensis |
Longevity: | 6 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1 inch |
Diet: | Insects – especially ants |
While this frog has the word “toad” in its name, it isn’t a toad at all. They are frogs.
They are either grey or brown with a characteristic fold on the back of their head. They are usually found on rocky slopes and canyons. These frogs prefer to hide under rocks and similar debris.
They can be found in some of southern Kentucky.
6. Wood Frog
Species: | Lithobates sylvaticus |
Longevity: | 3 years max |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1 ½ to 3 ¼ inches |
Diet: | Insects |
The Wood Frog ranges from brown to tan to rusty. They often have a dark coloration around their eyes, commonly referred to as a robbers mask.
They are found throughout much of Kentucky, except for some northern and western counties.
This species is exceptionally tolerable to colder temperatures. They can create a sugar solution that works like antifreeze in colder temperatures. They can tolerate freezing in up to 65% of their body.
7. Northern Leopard Frog
Species: | Lithobates pipiens |
Longevity: | 1–2 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 2–4½ inches |
Diet: | Anything that fits in their mouth |
This species is characterized by their haphazardly spaced rows of oval-shaped dots on their back. Sometimes, these rows don’t look much like rows at all.
They need access to three different habitats, including a permanent body of water for overwintering. This makes their range somewhat small since their needs are so particular.
As opportunistic feeders, they will eat just about anything – including birds and garter snakes. If it fits in their mouth, they will eat it.
8. Cope’s Gray Treefrog
Species: | Hyla chrysoscelis |
Longevity: | 7–9 years old |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1¼–2 inches |
Diet: | Insects |
This species is somewhat smaller than the Gray Treefrog. These two species can be difficult to distinguish from each other – especially while they are both mottled. Usually, the Cope’s gray treefrog has a lime-green coloration, while the Gray Treefrog varies more in coloration.
9. Blanchard’s Cricket Frog
Species: | Acris blachardi |
Longevity: | 1 year |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1.5 inches |
Diet: | Insects |
Despite their small size, these tiny frogs can jump extremely high – up to six feet in many cases.
Their coloration ranges a bit from orange to black to green. They are mainly found in northern Kentucky, where they prefer slow-moving streams, lakes, and ponds. They may also be found in marshy areas.
Their breeding call sounds like the chirp of a cricket and is usually repeated for about 20 beats.
10. Northern Cricket Frog
Species: | Acris crepitans |
Longevity: | 4 months |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1.5 inches |
Diet: | Insects |
As their name suggests, this frog sounds a lot like a cricket. Their coloration ranges from green to brown. Some are even a grayish color. They usually have a backward triangle on their head, which is an easy way to identify them.
They are found near permanent water sources – like slow-moving streams, lakes, and marshy areas.
They are found south and west of the Kentucky River drainage area.
11. Upland Chorus Frog
Species: | Pseudacris feriarum |
Longevity: | 5 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | ¾ to 1 ½ inches |
Diet: | Anything that fits in their mouth |
These tiny frogs have three dark stripes that run down the back of their head. They are usually brown, grey-brown, or reddish. Dark blotching is common.
This is a rare species to see due to its secretive nature. They usually prefer to stay hidden, though they may be spotted after it rains.
They are also rare in Kentucky, so the odds of just stumbling on one is unlikely.
12. Bird-voiced Treefrog
Species: | Hyla avivoca |
Longevity: | 2.5 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 1 to 1 ¾ inches |
Diet: | Insects and spiders |
The coloration of this frog varies widely. They can be either gray or green, depending on the individual. Often, they have a light spot under their eyes. They look very similar to Cope’s gray tree frogs – though they do sound quite different.
They have been known to interbreed with other treefrogs naturally, which has resulted in some interesting hybrids.
The 7 Big Frogs in Kentucky
13. American Bullfrog
Species: | Lithobates catesbeianus |
Longevity: | 7 – 9 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 8 inches |
Diet: | Anything that fits in their mouth |
Like most Bullfrogs, this species grows to be rather large. They can weigh up to a pound and a half when they reach their full size. They are often found near bodies of water with plenty of dense vegetation around the shoreline.
They are common throughout Kentucky and can be found in every county.
14. Green Frog
Species: | Lithobates clamitans |
Longevity: | Unknown |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 2 ½ – 3 ½ inches |
Diet: | Anything that fits in their mouth |
Based on their name, you would expect these frogs to be very green. However, they range from dark green to brownish. They have dark molting across much of their head, chest, and legs. Their throat color ranges from yellow for males to white for females.
They are abundant in Kentucky and can adapt to many different habitats. They prefer the water, though.
15. Green Treefrog
Species: | Hyla cinerea |
Longevity: | 6 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 2.5 inches |
Diet: | Insects |
As their name suggests, the Green Treefrog comes in various shades of green. They usually have a white stripe down their size, allowing you to identify them quickly.
Despite their somewhat larger size, they are easily frightened. Usually, they can be found in marshes, swamps, ponds, and streams. Currently, they are only in the western tip of Kentucky.
16. Crawfish Frog
Species: | Lithobates areolatus |
Longevity: | Unknown |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 2–3 inches |
Diet: | Beetles, reptiles, crawfish, and amphibians |
The Crawfish Frog has a large, stubby body and extreme humped back when standing still. They have many different irregular stripes and spots across their body, making them look unique compared to other frogs.
They can be found in a variety of habitats, including prairies and meadows. They don’t require water, but many can also be found around permanent lakes and ponds.
They are only found in the westernmost counties of Kentucky.
17. Barking Treefrog
Species: | Hyla gratiosa |
Longevity: | 8–10 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 3 inches |
Diet: | Insects |
The Barking Treefrog is unique. Firstly, they prefer areas that don’t have any trees or permanent standing water. This gives them very few options in Kentucky. How a frog can thrive without trees or standing water is a mystery.
They can be seen burrowing into the sand when the weather gets overly hot. Some may also climb the rare trees in the area.
18. Plains Leopard Frog
Species: | Lithobates blairi |
Longevity: | 2–4 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 3 3/4 inches |
Diet: | Insects, some vegetation |
This species is a medium brown with dark spots across its body. Their eardrum is very obvious, making it easier to identify them. They aren’t giant frogs, but they can get bigger than three inches.
They prefer streams, ponds, ditches, and similar habitats. In mild weather, they can travel quite far from water.
This is one of the rarest frogs in Kentucky, so the odds of seeing on it is pretty low.
19. Southern Leopard Frog
Species: | Lithobates sphenocephala |
Longevity: | 6–9 years |
Good to own as a pet?: | Yes |
Legal to own?: | Yes |
Adult size: | 4 inches |
Diet: | Anything that fits in their mouth |
The Southern Leopard frog gets their name from its uneven, oval-shaped dots. Kentucky is home to three different leopard frogs, but this is the most common species. They can be found in a variety of different habitats, depending on their needs.
For instance, they will forage in fields and meadows while overwintering in permanent bodies of water.
They will consume just about anything that fits in their mouth and are very opportunistic eaters.
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Conclusion
There are quite a few frogs that can be found in Kentucky. Some of them are unique, while other species can be hard to distinguish.
Luckily, none of these species are hazardous. One is poisonous, which may be troublesome for those looking to eat it. However, that usually doesn’t include humans – so most of us don’t have anything to worry about.
The poison is far more about making the frog taste bad – not necessarily killing the predator. Therefore, larger dogs probably aren’t in any danger either.
Learning to identify frogs is a mix of looking at their appearance and listening to their call. With some of the Kentucky treefrogs, the only way to tell them apart is to listen to their call. When it comes to frogs, their call can vary just as much as their appearance.
Featured Image Credit: Bernell MacDonald, Pixabay