The Wildlife of Our Watershed

Join us as we dive into the amazing wildlife that calls the Chesapeake Bay watershed home.

The Chesapeake Bay watershed spans 64,000 square miles throughout New York, Pennsylvania, Delaware, Maryland, Virginia, West Virginia, and Washinton, D.C. To put that into perspective, that’s more than 14 times the size of the Chesapeake Bay itself. This expansive, diverse land is home to more than 18 million people and over 3,000 plant and animal species. There’s a wide range of landscapes and even more life to explore throughout the watershed, so we’re glad you’re here.

Wildlife by the Numbers

Bird

79+

BIRD SPECIES

Brook trout in a net

70+

FISH SPECIES

Swallotail butterfly on a milkweed flower.

21+

INSECT SPECIES

36+

MAMMAL SPECIES

Large turtle looking up at the sky.

20+

REPTILE SPECIES

Frog in a pool of water.

11+

AMPHIBIAN SPECIES

4+

ALGAE SPECIES

A bucket of blue crabs.

69+

INVERTEBRATES

Animals Upstream

“Animals Upstream” is an engaging four-part video series that unveils the often-overlooked wonders within the Chesapeake Bay watershed. When one thinks of the Chesapeake Bay, images of rockfish, oysters, and blue crabs likely come to mind. While these are iconic to the region, the watershed extends across 64,000 square miles and provides a home to more than 3,600 species of plants and animals.

Bear video coming soon!

Elk video coming soon!

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Stay tuned for more Animals Upstream videos coming soon!

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Explore Additional Wildlife Stories

Voles: The Tree Planter’s Worst (and Cutest) Enemy

Voles might look small, adorable, and innocent, but they can wreak immense havoc on newly planted forests.

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A closeup of a mosquito on a person's skin

Mosquitoes, Chiggers and Ticks; Oh My!

As we begin to welcome the warmer weather and longer days, you may have noticed an upTICK in pesky biters. They don’t have to put a damper on your outdoor plans, though! Check out some tips, tricks, and fun facts on how to identify and prevent them.

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What’s Flyin’? Phenological Fun!

It’s not a giant mosquito! In fact, there aren’t giant mosquitoes! In North America, mosquitoes max out at less than a dime in size, legs included. Keep the change! This is a crane fly!

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Male and female wood ducks

Wood Ducks 101

Wood ducks are one of those animals that just seems odd and out of place in our watersheds. But, wood ducks are native to the Bay, and call the Chesapeake home year-round.

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Bees Need Trees

Large, charismatic wildflower blooms might get more screen time than some of the early tree blooms that are harder to appreciate or photograph from eye-level, but both are important to bee conservation, for both generalist and specialist species.

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Spring Means Snow

The snow goose (Anser caerulescens) migration is an annual event that many of us within the Chesapeake Bay region look forward to each year.

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A person smiling while a monarch butterfly rests on their finger

More Milkweed for the Monarchs

I remember how excited I would get as a child before entering the local butterfly enclosure. My friends, family, and others there were always on the lookout for one of the most iconic pollinators in the Americas – the monarch butterfly. Decades later, while partnering with a monarch conservation group, I was thrilled to see the awe remain in the eyes of today’s children during their yearly monarch release. Crossing borders and biomes, monarch butterflies are still a source of wonder and an inspiring symbol of summer in the Chesapeake Bay.

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Having a Dam Good Time at BeaverCon

In 2022, myself and about 200 others from across the United States, England, Wales, and the Netherlands gathered near Baltimore to attend BeaverCon, a two-day conference to learn and share about beavers. The attendees included restoration professionals, scientists, biologists, landowners, students, and representatives from state, local, and federal governments. So why a conference dedicated to …

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A Bald Eagle sitting on a tree branch.

Winter Birding – It’s for the Birds!

The coo of a Mourning Dove outside your window. The fluted sound of a Wood Thrush accompanying you on a hike. Birds add richness to our lives if we are simply open to it – and they are just beautiful to look at!

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Celebrating Shark Week: Jaws of the Chesapeake

Happy Shark Week everyone! If you’re anything like me, you are glued to the Discovery Channel for exactly one week every summer to learn from the newest and most groundbreaking shark research happening around the world. With Shark Week coinciding with peak swimming and boating season, you may have found yourself wondering – Are there …

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