I was biking around Lake Artemisia yesterday and then headed north on the Paint Branch Trail. Just north of the U. of MD, where there is a wetland area with tons of frogs. I could not see them, but they were singing loudly. I wish I had a Merlin like app that could identify the exact species. Probably something like that exists. Here are some similar sounds to the ones I heard:
https://musicofnature.com/calls-of-frogs-and-toads-of-the-northeast/
I also heard a Pileated Woodpecker who was almost as loud as a jackhammer. Unfortunately, it was so high up in the trees that my photos did not capture it clearly.
Here is the sound of a different woodpecker, but the sound is similar.
I did capture photos of some friendly and curious deer:
Here is the location of the frogs, if you want to go and listen:
Worthy Mouse Clicks 