Stories tagged nest box

I just downloaded the Raptor Resource 2008 Project Banding Report (how's that for a little light reading?), and I found the following:

"We removed the High Bridge stack nest box after the 2007 nesting season. Xcel Energy was converting from a coal facility to natural gas turbine operation, and planned to raze the stack some time in early 2008. We installed a replacement nest box on the nearby ADM stackhouse, but it appears that the falcons chose to nest under the nearby High Bridge instead."

All spring we watched and waited, and the birds were there all along! I'll get in touch with the folks at Xcel and Raptor Resource and see what we can do about watching the peregrines during the 2009 nesting season.

Folks from Excel Energy and the Raptor Resource Project provided a new nest box to the staff at the ADM terminal at 575 Drake Street (at the intersection of Shepard Road and Randolph Avenue). ADM is going to mount and prepare the box by February 1. With a little luck, the falcons we've been lucky to watch for the last few breeding seasons at the High Bridge stack will find the new box and set up housekeeping as usual. (The High Bridge stack is going to be demolished; right now, the nest cam shows the construction site of the new, adjacent power plant.) Keep your eyes open and your fingers crossed...

Scientists will be banding Athena's chicks starting at 9am on Tuesday, June 26. Science Museum visitors get to pick names for the little peregrine falcons: vote now for your favorite! We'll be closing the poll on Monday morning.

Visitors to the Science Museum will name some of the falcon chicks. (Haven't seen them? Stop by the Mississippi River Gallery: you can use a scope to see the nest box on the stack of the High Bridge power plant, and you can see a live video feed from inside the box.) Vote for your favorite name!

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Big surprise! Sometime between Tuesday and yesterday, the fourth egg hatched. (This youngest bird hatched out of the first egg laid, and we didn't have high hopes for it.)

The whole brood: This shot, captured yesterday, shows Athena and all her chicks.
The whole brood: This shot, captured yesterday, shows Athena and all her chicks.

Dinner time...: Keeping these guys fed is a full-time job.
Dinner time...: Keeping these guys fed is a full-time job.

The young birds will grow fast, and will fledge--leave their nest--sometime in mid July. They'll stay with their parents for about two months afterward, learning to hunt. First the parents catch prey and the young birds learn to snatch it from them in mid-air. When they get good at that, the chicks start learning to hunt on their own.

Here's the sobering truth, though: On average, only two juveniles successfully fledge per nest. And the first year is dangerous. But a peregrine that survives the first year has a good shot at a long life. Some birds have even lived to be 18-20, but that's not typical. An average lifespan is more likely somewhere between 2 and 8 years.

New pictures appear every few minutes on the High Bridge Falcon Cam daily photos site.

Here are earlier 2007 falcon updates, as well as the story of the 2006 season. Or learn more about peregrines, and get to know Athena.

Visitors to the museum get to name falcon chicks. Right now, we're taking name suggestions. Later on, we'll turn those into a visitor poll, and the names with the most votes will go to the chicks.

Eggwatch 2007

by Liza on Apr. 16th, 2007
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“Athena”—the female peregrine falcon at the High Bridge power plant nest box—laid her first egg of 2007 on Sunday, April 15. Peregrines usually lay three or four eggs each year, so we'll be watching for more in the next few days.


Athena's first egg, 2007: Hard to see, but it's there. (It's the orange blob by her foot.) Congratulations, Athena.

The male and female falcons share the 33-day incubation duties, which include turning the eggs regularly. (The birds don't incubate the eggs in earnest, though, until they've laid all the eggs they're going to lay.) If all goes well, the baby peregrines will hatch sometime in the second half of May.

You can get daily updates here on Science Buzz, or get hourly updates by visiting Xcel Energy's High Bridge daily photos page.


Falcon chicks: Baby peregrines are helpless when they hatch, but they grow at an astonishing rate. (Courtesy US Fish and Wildlife Service)
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More on peregrines from Science Buzz...

Looks like "Athena" and the unidentified male from last year have been hanging out at the nest box on the stack of the High Bridge power plant. We'll be switching the critter cam to feature the falcons soon. In the meantime, check out the High Bridge falcon forum, or read up on last year's nest.