Connecticut’s Spring Bird Comeback Is a Scientific Marvel

As the flowers begin to bloom, a familiar soundtrack is returning to the air after months of silence. Jen the Zookeeper has more on the seasonal excitement and everything you need to know about the birds making their comeback.

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Each spring, the skies over Connecticut quietly fill with returning migrants. Millions of birds flying mostly at night, as if trying to avoid both predators and awkward small talk. Thanks to BirdCast, scientists can track these movements in real time using weather radar, revealing that on peak nights, vast waves of birds pass overhead while humans remain blissfully unaware and focused on snacks.

Migration is driven by increasing daylight, warming temperatures, and the promise of food. Birds navigate using a mix of celestial cues and Earth’s magnetic field, essentially carrying built-in compasses that never need recalibrating. Meanwhile, humans still get lost in parking lots.

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Then there’s the Ruby-throated hummingbird, a creature so small it looks like it was designed as a joke but performs like an elite athlete. Some individuals fly hundreds of miles nonstop, including trips over the Gulf of Mexico. Upon arrival, they immediately seek nectar and begin fiercely defending feeders, despite weighing less than your house key.

Put it all together, and spring migration is part scientific marvel, part airborne marathon, and part tiny-drama reality show. And with tools like BirdCast, we now know that while Connecticut sleeps, the sky is anything but quiet.

More on Jen the Zookeeper

Jen has spent more than 30 years immersed in the fields of animal care, conservation, and science education. As the former Director of Animal Care for the New Canaan Nature Center in Connecticut, she oversaw the care of native mammals, reptiles, and birds of prey while educating the public about the important roles these wild neighbors play in our ecosystem. Her experience also includes time with both the Bronx Zoo and the Los Angeles Zoo, where she focused on the care of African and Asian wildlife and helped teach visitors about the delicate balance between humans and natural habitats.

Later, while working at a wildlife sanctuary in Half Moon Bay, California, Jen played a key role in training and handling nearly 50 exotic species. She also developed educational programs for at-risk and foster youth, helping historically underserved kids build trust, confidence, and healing connections with the non-releasable animals at the sanctuary.

In addition to her extensive wildlife work, Jen has experience in horse and dog training, animal control, veterinary care, and all things conservation education. Today, she owns and operates Jen Kotkin Pet Care, where she provides personalized care, exercise, and enrichment for dogs, cats, horses, birds, and more.