Leopard frogs abound in Bangor City Forest

A few days ago, I was walking along Shannon Drive, a wide multi-purpose trail in the Rolland F. Perry City Forest (commonly known as Bangor City Forest), looking for wildlife to photograph, when I realized that I was surrounded by frogs.

They blended into the grass lining the trail so well that at first, I didn’t notice them. But it wasn’t long before I began seeing them hop away from my feet as I walked along the trail. Indeed, they were everywhere.

I thought they were green frogs. Well, they were green frogs, but I mean … lets start over.

“Green frog” is the common name of Rana clamitans melanota, a frog that is quite common here in Maine. But by comparing my many photos of Bangor City Forest frogs to images on the Maine Herpetological Society website, I’ve learned that what I was really looking at were northern leopard frogs, Rana pipiens.

Both green frogs and northern leopard frogs are the color green, but their patterning is quite different.

If you’re simply a curious person (the watches-documentaries-for-fun type), you’re probably wondering just how many different kinds of frogs live in Maine. Well, according to the Maine Herpetological Society, we’ve got the American toad (Bufo americanus americanus), bullfrog (Rana catesbeiana), green frog (Rana clamitans melanota), mink frog (Rana septentrionalis), wood frog (Rana sylvatica), northern pickerel Frog (Rana palustris), northern leopard frog (Rana pipiens), gray tree frog (Hyla versicolor), spring peeper (Pseudacris crucifer). 

But since I was recently bombarded by leopard frogs, lets focus on them.

According to the National Geographic website, the northern leopard frog is “perhaps most recognizable as the formaldehyde-soaked specimen in the high school lab tray.”

OK, that was a bit gruesome.

Starting over.

According to the National Geographic website, the northern leopard frog was once the most abundant and widespread frog species in North America, but a major decline in their population began in the early 1970s.

“Scientists have not determined the cause of the declines, but it is likely a combination of ecological factors: pollution, deforestation, and water acidity,” National Geographic states.

Northern leopard frogs look a little bit like leopards. They have a bunch of irregularly shaped dark spots decorating their greenish-brown bodies.  In the Bangor City Forest, I noticed that some were greener than others, and each had a unique pattern of spots.

They are considered medium-size, reaching lengths of 3 to 5 inches. If you see a really big one, it’s probably a female, which are slightly larger than males.

They usually live near ponds or marshes, but they’ll hop into grasslands. You might know them by their other common name — meadow frog.

As I walked along the multi-use trail, watching the leopard frogs launch into the air, I thought about how much fun it would be to bring my 2-year-old niece Willa to see the frogs. Seems like an enjoyable family activity to me, as well as an opportunity to teach children how to watch wildlife without touching. It would also be a great way to work on numbers. Hmmm.. looks like I need to head back to the forest before the all frogs hide away to wait out the coming winter. If you decide to go check out the frogs, trust me, you won’t be disappointed. Just be respectful of their froggy space.





Aislinn Sarnacki

About Aislinn Sarnacki

Aislinn is a Bangor Daily News reporter for the Outdoors pages, focusing on outdoor recreation and Maine wildlife. Visit her main blog at actoutwithaislinn.bangordailynews.com.