Raptor Resource Project Blog

I am deeply sorry to confirm that Bob Anderson passed away this morning. Out of respect for Bob and his family, we are asking that everyone ...

Camera and N2 As you might know, wind took down N2 in Decorah very early on Saturday, July 18. The limb that held the nest tree was shea...

The eagles have fledged, but we haven't stopped having fun! Come to our After The Fledge party in Decorah, Iowa, from July 16 through ...

Can bald eagles get avian influenza? That question is increasingly being asked of us at Ustream and on Facebook. The short answer: We don...

Eaglets aren't the only thing growing right now! The two eyas red-tailed hawks at Eaglecrest are morphing into adults right before our e...

Earlier this week, a follower asked us for a recap of eagle Four’s life. Four was one of three eaglets that hatched in 2014. While early lif...

The  Chicago Peregrine Program  inspired me to write a quick blog on the colors and shapes of eggs. Bald eagles have white eggs, peregrine f...

We are sorry to announce that Four, the single remaining bird from the 2014 Decorah alumni to remain in the wild, was electrocuted on Tuesda...

Egg Questions and Answers How long does it take a bald eagle egg to hatch? There are two ways to think about this: from egg laying to hat...

Humans, other mammals, and some insects genetically determine sex via X and Y chromosomes. In the XY sex-determination system, females inher...

At A Glance How do our birds compare? While bald eagles are clearly the heavyweights of the group, barred owls and great horned owls are te...

Mom, Dad, and eaglets in a late storm, 2011 We get a lot of questions about bald eagles and cold weather. I've written a few posts o...

Owl Defense @ roughly 12:00AM On Monday morning (01/19/15) at about 12:07AM, our cameras caught an altercation between an invading great...

We have a day for giving thanks. We have two for getting deals. Now, we have #GivingTuesday, Tuesday, December 2nd, a global day dedicated t...

2016 note: The winter of 2014 was mixed. To date, the winter of 2016 has been far warmer than normal. Click here for a synopsis of 2014/201...