Du Bois Falcons
@duboisfalcons.bsky.social
The official account for the peregrine falcons nesting at UMass Amherst.
A new unbanded female is on the roof today. Webster was in the nest box and head-bowing to her when she flew in and landed on the camera arm, then the roof next to the box.
November 19, 2025 at 5:06 PM
A new unbanded female is on the roof today. Webster was in the nest box and head-bowing to her when she flew in and landed on the camera arm, then the roof next to the box.
Happy Halloween! Webster decided to go as Perry(grine) the Platypus. He's excited for Trick or Tweet!
October 31, 2025 at 4:33 PM
Happy Halloween! Webster decided to go as Perry(grine) the Platypus. He's excited for Trick or Tweet!
What happens to the nest box after nesting season concludes for the year? Well...
October 27, 2025 at 6:47 PM
What happens to the nest box after nesting season concludes for the year? Well...
How could we not celebrate Hobbit Day when one of Tolkien's characters shares a name with our beloved falcon species? Follow Peregrine "Pippin" Took's lead today and enjoy se-cawed breakfast with a side of adventure.
Here's Webster doing his best Gandalf impression just for the occasion.
Here's Webster doing his best Gandalf impression just for the occasion.
September 22, 2025 at 6:56 PM
How could we not celebrate Hobbit Day when one of Tolkien's characters shares a name with our beloved falcon species? Follow Peregrine "Pippin" Took's lead today and enjoy se-cawed breakfast with a side of adventure.
Here's Webster doing his best Gandalf impression just for the occasion.
Here's Webster doing his best Gandalf impression just for the occasion.
Ahoy! Webster be wishing ye a happy Talk Like a Pirate Day with his favorite joke:
What's a pirate's favorite part of the library?
The arr-chives! 😆
What's a pirate's favorite part of the library?
The arr-chives! 😆
September 19, 2025 at 4:48 PM
Ahoy! Webster be wishing ye a happy Talk Like a Pirate Day with his favorite joke:
What's a pirate's favorite part of the library?
The arr-chives! 😆
What's a pirate's favorite part of the library?
The arr-chives! 😆
Webster and the unbanded female hanging out together on the roof. Note how he's head-bowing to her, which is an act of pair-bonding between two falcon mates. Pair-bonding activities are not exclusive to nesting season.
September 16, 2025 at 5:28 PM
Webster and the unbanded female hanging out together on the roof. Note how he's head-bowing to her, which is an act of pair-bonding between two falcon mates. Pair-bonding activities are not exclusive to nesting season.
September 12, 2025 at 6:38 PM
September 8, 2025 at 6:12 PM
Of course our girls would win the Idol Awards. They're super talon-ted. #KPopDemonHunters
September 3, 2025 at 8:12 PM
Of course our girls would win the Idol Awards. They're super talon-ted. #KPopDemonHunters
Hello, falcon fans! We wanted to wait to have all the info before making a post:
Last week, we received a call regarding a falcon casualty by Lederle. The adult female interloper had struck a window while hunting a racing pigeon. (1/4)
Last week, we received a call regarding a falcon casualty by Lederle. The adult female interloper had struck a window while hunting a racing pigeon. (1/4)
August 18, 2025 at 2:52 PM
Hello, falcon fans! We wanted to wait to have all the info before making a post:
Last week, we received a call regarding a falcon casualty by Lederle. The adult female interloper had struck a window while hunting a racing pigeon. (1/4)
Last week, we received a call regarding a falcon casualty by Lederle. The adult female interloper had struck a window while hunting a racing pigeon. (1/4)
The Caw-mazing Spider-Man? 🤔🕸️🦅😆
Happy Spider-Man Day! You can check out volumes of Spidey and other superhero comics at the Libraries.
#SpiderManDay
Happy Spider-Man Day! You can check out volumes of Spidey and other superhero comics at the Libraries.
#SpiderManDay
August 1, 2025 at 5:31 PM
The Caw-mazing Spider-Man? 🤔🕸️🦅😆
Happy Spider-Man Day! You can check out volumes of Spidey and other superhero comics at the Libraries.
#SpiderManDay
Happy Spider-Man Day! You can check out volumes of Spidey and other superhero comics at the Libraries.
#SpiderManDay
Merriam has been in the nest box every day since her return, laying claim to her territory. We saw her and Webster head-bowing to each other yesterday, so they are back to pair-bonding with each other. We've seen no sign of the interloping female since Merriam's return.
July 23, 2025 at 6:16 PM
Merriam has been in the nest box every day since her return, laying claim to her territory. We saw her and Webster head-bowing to each other yesterday, so they are back to pair-bonding with each other. We've seen no sign of the interloping female since Merriam's return.
July 22, 2025 at 2:21 PM
Falcon fans, we have some surprising news...Merriam is back! Thanks to falcon fan Lee Breckenridge for alerting us! We don't know what's going to happen with her, Webster, and the interloping female, but we'll be keeping a close watch on the situation.
July 17, 2025 at 10:15 PM
Falcon fans, we have some surprising news...Merriam is back! Thanks to falcon fan Lee Breckenridge for alerting us! We don't know what's going to happen with her, Webster, and the interloping female, but we'll be keeping a close watch on the situation.
We have some sad news. It appears as though Merriam is gone. While we will continue to look for her around the area, it is most likely that she has been either killed or driven off by a new, unbanded female that has begun to pair bond with Webster: unfortunately, not an uncommon occurrence. (1/7)
July 3, 2025 at 5:09 PM
We have some sad news. It appears as though Merriam is gone. While we will continue to look for her around the area, it is most likely that she has been either killed or driven off by a new, unbanded female that has begun to pair bond with Webster: unfortunately, not an uncommon occurrence. (1/7)
The Powergrine Girls here to remind you to take care of yourselves in this heat wave! Did you know peregrine falcons pant like dogs to cool down?
June 24, 2025 at 5:22 PM
The Powergrine Girls here to remind you to take care of yourselves in this heat wave! Did you know peregrine falcons pant like dogs to cool down?
"Sorry, Mom...I promise not to land inside the roof again..."
June 11, 2025 at 3:48 PM
"Sorry, Mom...I promise not to land inside the roof again..."
Buttercup helicoptered down into the walled area of the Du Bois roof and needed a hand from the falcon team to get back up to the nest box. It's very common for young fledglings to get a little stuck like this, and she's completely fine, if a little embarrassed at her misadventure.
June 10, 2025 at 6:36 PM
Buttercup helicoptered down into the walled area of the Du Bois roof and needed a hand from the falcon team to get back up to the nest box. It's very common for young fledglings to get a little stuck like this, and she's completely fine, if a little embarrassed at her misadventure.
Blossom here would like to announce that the Powergrine Girls fledged this weekend! We'll be keeping a close watch on the cam to try and capture clips of them flying to share with you.
#NESTFLIX
#NESTFLIX
June 9, 2025 at 3:39 PM
Blossom here would like to announce that the Powergrine Girls fledged this weekend! We'll be keeping a close watch on the cam to try and capture clips of them flying to share with you.
#NESTFLIX
#NESTFLIX
We've received quite a few questions regarding Webster's whereabouts. He's around! Here he is doing some stretching while watching his girls explore the roof this morning.
June 4, 2025 at 1:38 PM
We've received quite a few questions regarding Webster's whereabouts. He's around! Here he is doing some stretching while watching his girls explore the roof this morning.
Our chicks have begun to branch, a.k.a. exploring outside of the nest box. It won't be long before we see some fledging! Quick reminder that if you see one on the ground, DO NOT TOUCH THEM. Keep an eye on them and call:
Richard Nathhorst:
(413) 545-6497 Office
(413) 530-5424 Cell
(413) 367-2422 Home
Richard Nathhorst:
(413) 545-6497 Office
(413) 530-5424 Cell
(413) 367-2422 Home
June 2, 2025 at 2:22 PM
Our chicks have begun to branch, a.k.a. exploring outside of the nest box. It won't be long before we see some fledging! Quick reminder that if you see one on the ground, DO NOT TOUCH THEM. Keep an eye on them and call:
Richard Nathhorst:
(413) 545-6497 Office
(413) 530-5424 Cell
(413) 367-2422 Home
Richard Nathhorst:
(413) 545-6497 Office
(413) 530-5424 Cell
(413) 367-2422 Home
Introducing...The Powergrine Girls! 💗
94/CA: Blossom
95/CA: Bubbles
96/CA: Buttercup
Thanks to everyone who participated in our annual naming contest!
94/CA: Blossom
95/CA: Bubbles
96/CA: Buttercup
Thanks to everyone who participated in our annual naming contest!
May 30, 2025 at 2:28 PM
Introducing...The Powergrine Girls! 💗
94/CA: Blossom
95/CA: Bubbles
96/CA: Buttercup
Thanks to everyone who participated in our annual naming contest!
94/CA: Blossom
95/CA: Bubbles
96/CA: Buttercup
Thanks to everyone who participated in our annual naming contest!