Putney Mountain is one of the high points in Vermont where bird watchers gather in early fall to see the migration of raptors and butterflies. Biologist Kent McFarland and Sara Zahendra explain how raptors travel for hundreds of miles using as little energy as possible.

Monarch butterflies are hard to miss with their brilliant orange color and a wingspan that can reach four inches across. But recently they've been difficult to find because their numbers are in decline. In this edition of Outdoor Radio, biologists Sara Zahendra and Kent McFarland track Monarchs in the flower-filled fields of the Burlington Intervale . We'll learn how Monarchs migrate to Mexico and the challenges to their survival.

The Birds Of Vermont Museum in Huntington has created pollinator gardens to attract and support bees, butterflies, flies and other insects.

The lake sturgeon is an ancient, long-lived and peculiar fish that lives in Lake Champlain. Lake sturgeon can live as long as 150 years and weigh 300 pounds. They are basically a prehistoric relic — a fishasaurus!

This month, Outdoor Radio takes you to Salisbury, Vermont where salamanders, newts and frogs are crossing Morgan Road to a swamp where they reproduce. Dozens of volunteers are keeping a tally, and when a car comes along, the volunteers scoop them up so they don't get squashed. Biologists Kent McFarland and Sara Zahendra are joined by Herpetologist Jim Andrews as the volunteers work with clipboards and flashlights to participate in this rite of Spring. Over the course of two and a half hours, 44

Scientists are working diligently to help the majestic American Elm reign once again, after the tree was decimated by Dutch Elm Disease. In this episode of Outdoor Radio , biologists Sara Zahendra and Kent McFarland of the Vermont Center for Ecostudies are in Plainfield at the foot of a disease-resistant elm. Scientists are taking branch clippings from 60 feet up to pair the buds with other resistant trees. When these buds open in a few weeks, the pollen will be harvested and matched to other

This month on Outdoor Radio , biologists Kent McFarland and Sara Zahendra of the Vermont Center for Ecostudies head out into the woods to track the Fisher. Sometimes called the Fisher Cat, it's not a cat at all. Biologist Steve Faccio, who specializes in Fishers, joins McFarland and Zahendra to dispel some myths about Fishers and offer tips on how to track them.

This is the time of year when Black-capped Chickadees congregate at bird feeders, making their distinctive sound. These affable little birds are stashing away thousands of seeds for the winter.

The Dead Creek Wildlife Management Area is a destination spot for bird watchers who come to see the thousands of snow geese that flock there. Biologists Sara Zahendra and Kent McFarland explain why snow geese are on the decline and why that's a good thing. You'll hear the incredible din of the birds as they rise up from Dead Creek in a cloud of winged snow. Here are some additional resources to learn about Dead Creek and Snow Geese. Vermont e-Bird's live map of snow geese sightings Natrualist

We all learned the basics of how and why leaves change color in the fall. But on this edition of Outdoor Radio, we take a deeper look at the chemistry of foliage.