Tag Archives: FAQ

Who is Mom’s beau? It’s DM2!

October 17, 2019: DM2

Like a lot of you, we’ve spent the past couple of weeks trying to figure out who Mom Decorah is spending time with. He looked like DM2. He acted like DM2. But was he really DM2? We got confirmation on October 19 when one of our camera operators got up close and personal with his left iris and captured his distinctive fleck! This mark, combined with distinctive head and facial features and his behavior with Mom around the nest, allows

On Migration

September 2019: Migrating Birds on the Mississippi Flyway

At whatever moment you read these words, day or night, there are birds aloft in the skies of the Western Hemisphere, migrating. If it is spring or fall, the great pivot points of the year, then the continents are swarming with billions of traveling birds… – Living on the Wind: Across the Hemisphere with Migratory Birds We get a lot of questions about migration. Do the Decorah eagles migrate? Do our Peregrine falcons migrate? Where do they go when they

What’s In A Name? Eagles and Falcons

whatsinaname 175x175 - What's In A Name? Eagles and Falcons

From John Howe: “You have asked us how we identify names for the raptors we follow. I can assure you that the eagles and falcons don’t care if they are called by a name or not. That is a human thing. However, we need to have a way to identify birds as we collect and share data. In the case of peregrine falcons, landowners and cooperative partners assign names as they please. In the case of eagles, we assign an

Identifying birds of prey in flight

Silhouettes of birds of prey in flight

Bald Eagle or Turkey Vulture? Is that a Peregrine Falcon or something else? Understanding body plans can be helpful in identifying soaring, stooping, and flying birds. Coming to our After the Fledge party in Decorah? Get ready for Turkey Vulture or Not with this article!  Bald eagles are soaring generalist hunters that eat almost anything they can catch. Peregrine falcons are energetic, acrobatic flyers that specialize in catching birds in the air. Both are birds of prey, but their body

What are feathers? What is molt?

Feather Follicle

Eaglets go through two molts and three feather stages in the nest: natal down (and molt), followed by thermal down (and molt), followed by juvenile feathers. As of this blog, the Decorah eaglets are shedding the very last of their natal down and their thermal down is rapidly being replaced by juvenile down and feathers. We thought we would blog a little more about feathers to celebrate!  When we think about feathers, we tend to think about their qualities (light,

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