Tag Archives: wood frog

Wood frogs of our vernal pool…Nature in a minute

As winter ends, low lying areas and woodland hollows fill up with snow melt and rainwater to create temporary isolated woodland ponds called vernal pools. The wildlife sanctuary at the Museum of American Bird Art has 5 vernal pools on the property with our largest vernal pool only a 5 to 10 minute walk from the museum’s parking lot. These pools provide critical breeding habitat for several amphibian and invertebrate species with life cycles that have adapted to these rich, temporary phenomena.

As winter slowly turns into spring, I eagerly anticipate walking up the first hill on the main loop trail. Before the vernal pool is visible, I know spring has arrived when I hear a characteristic “quacking” that isn’t from ducks, but from the wood frog (Rana sylvatica). When they emerge from their winter slumber, they quickly make their way to vernal pools to breed. I heard the first wood frogs in the vernal pool on March 26, 2018 and was able to take the first pictures today.

Characteristic dorsal-lateral ridges on the back of the wood frog.

This masked frog looks somewhat like a much larger spring peeper, but look for the ridges running down the sides and no pattern on the back.

Notice the characteristic eye mask right next to the eye

True to its name, it lives in forests, breeding in temporary, or vernal, pools. It attracts mates with a quacking call, and the female lays large masses of eggs.

Listen carefully for the characteristic quacking coming from the vernal pool right next to where this wood frog is sitting.

Learn even more about vernal pools in the Spring 2018 issue of Explore.

Spring Has Sprung: Notes from the Field

Over the past few weeks, the sanctuary has been bursting with life as spring is “just around the corner”, even though we woke up to snow on April 5th. Join us at 8am on our weekly Friday bird and natural history hikes to see all the amazing creatures, plants, and views on the Morse Wildlife Sanctuary. Even better is the terrific company and being out in nature. 

Snoozing Raccoon

While I was investigating life in a vernal pool, some peaceful fur way way up in the crook of a tree caught my attention. A raccoon was snoozing the day away. Check out the ears on one side and the foot on the other.

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Mystery Tree Damage

Near one of our smaller vernal pools, the damage to this tree puzzled me. Based on it’s teeth marks, it is clearly a rodent, but the damage is one inch deep at some points and is about 8 ft long. I’m are not sure what caused this damage, but could it be a porcupine? Let us know what you think.

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Deer Traffic Jam

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Birding Highlights

Here are a few of the birds that have been seen over the past few weeks.

  • Red-tailed hawk hunting pine voles

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  • Brown creepers
  • Eastern phoebes
  • Wood ducks
  • Hermit thrush
  • Hairy and downy woodpeckers
  • Flocks of dark-eyed juncos, chickadees, tufted titmouse, and American robins
  • Pair of nesting red-shouldered hawks
  • Red-bellied woodpeckers
  • Calling red-winged blackbirds in the red maple swamp (birding hotspot)
  • American woodcock
  • Our digital photography homeschool class observed a cooper’s hawk preying on a mallard.
  • Check out our bird blind by the gallery, our feeders are always stocked and there are usually lots of birds to photograph

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Flora Highlights

Stunk cabbage is one of the first plants to emerge in the spring. It is found near soggy or submerged soil and is usually pollinated by flies. This was taken near the Pequit Brook.

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Rattlesnake Plantain

Check out this amazing little orchid hiding under the pine needles. These pictures are from early March.

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One of the tiniest and earliest spring flowers

We have had over 10,000 of these flowers blooming in bare patches of soil and on our lawns. They are so easy to miss until you start looking for them.

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Vernal Pools in the Wildlife Sanctuary

In early March, when the weather cracked 60 degrees, the spring peepers and wood frogs started calling. Wood frogs sound more like ducks than frogs. Check out these two videos to hear them.

Wood frogs are abundant at our wildlife sanctuary and are always one of the first frogs to emerge from hibernation. This year, wood frogs were first observed on March 10 congregrating in large numbers at our main vernal pool and where I counted well over 60 wood frogs on March 11. Listen to their chorus from March 11, 2016.

Spotted salamanders have also been laying eggs and fairy shrimp are abundant.

Fairy Shrimp. Photo Credit: B. L. Dicks and D. J. Patterson

On April 3rd, Owen Cunningham and a volunteer spent the afternoon searching for life in our pools and were able to identify wood frog and spotted salamander eggs. This data will be submitted to the state and we expect that our vernal pools will be certified by the Mass Natural Heritage and Endangered Species Program.

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