Raptor Resource Project Blog

So what's on the menu at Fort St. Vrain? While we were up in the nest, I decided to collect prey remains. We don't have the necessar...

Back in late August, John and I traveled to Platteville, Colorado, to work with Xcel Energy employees Bill Heston, Tina Lopez, and Naresh Da...

Fitting D27's Transmitter It is early August and I have one satellite transmitter (or PTT) yet to deploy on a young eagle. Dave and ...

Dad brings in the two-for-one suckerfish special! It's been a bountiful season for The North's in the quantity of prey hauled h...

We are getting a lot of questions about the perch design at Great Spirit Bluff. Are falcons jumping because the perches are poorly designed?...

As watchers of Great Spirit Bluff know, we lost two falcons to black flies/buffalo gnats. The young falcons died from blood loss and a blood...

Peregrine falcon, Decorah North Nest A sharp-eyed camera operator spotted an unbanded adult peregrine falcon at the Decorah North Nest t...

Top to bottom: Decorah N2B, Decorah North, Xcel Fort St. Vrain Most of our eaglets are in their fourth week of life: 26, 25, and 22 da...

It is April 10 as I write this, and our eaglets are growing rapidly! In Decorah, D26 is 10 days old, D27 is 9 days old and D28 is 6 days o...

The EPA, or Environmental Protection Agency, is a US government agency established in 1972 to protect human health and the environment. By t...

We are watching eaglets at three nests right now: Decorah, Decorah North, and Xcel Energy Fort St. Vrain. The oldest (FSV34) is five days ol...

It is 31 days since egg number one was laid in Decorah, 32 days since egg number one was laid at Decorah North, and 36 days since egg number...

Since we are watching bald eagles and peregrine falcons, I wanted to talk a little bit about body plans and their influence on flight, hunti...