| March 25, 2018|| March 26, 2018|| March 27, 2018|| March 28, 2018|| March 29, 2018|| March 30, 2018|| March 31, 2018|
| April 1, 2018|| April 2, 2018|| April 3, 2018|| April 4, 2018|| April 5, 2018|| April 6, 2018|| April 7, 2018|
| April 8, 2018|| April 9, 2018|| April 10, 2018|| April 11, 2018|| April 12, 2018|
3:20 pm: A second clutch for Mrs. North! 3:20 pm: A second clutch for Mrs. North!
| April 13, 2018|| April 14, 2018|
| April 15, 2018|
1:16 pm: 2nd egg of 2nd clutch for Mrs. North 1:16 pm: 2nd egg of 2nd clutch for Mrs. North
| April 16, 2018|| April 17, 2018|| April 18, 2018|| April 19, 2018|| April 20, 2018|| April 21, 2018|
| April 22, 2018|| April 23, 2018|| April 24, 2018|| April 25, 2018|| April 26, 2018|| April 27, 2018|| April 28, 2018|
| April 29, 2018|| April 30, 2018|| May 1, 2018|| May 2, 2018|| May 3, 2018|| May 4, 2018|| May 5, 2018|
About the Eagles
The Decorah North eagles are nesting on private property north of Decorah. Their very large nest is located in a white oak tree in a scrap of forest bordering a valley and an excellent stream is located just across a field where cattle are pastured. In general, they begin courtship in October, productive mating in late January or early February, and egg-laying in mid to late February. Hatching usually begins in late March to early April, and the eaglets fledge in mid-to-late June. While young usually disperse between August and October, the adults remain on territory year round.
Thanks to Spring Grove Communications for their help bringing the Decorah North Nest to the world!
The eagles eat live and and dead fish, squirrels, other birds, rabbit, muskrat, deer, possum and anything else they can catch or find. To learn more about bald eagles in general, please follow this link to the Cornell Lab of Ornithology website. Thanks to A2Z Security Cameras for their help and support with our new HD cameras!
Mom and Dad
We know very little about the adults here, although they are both sexually mature bald eagles that are older than five years of age (Click here for a guide to aging bald eagles based on plumage color and patterns). We think that Mr. North may have been a first-time father in 2016 based on their egg-laying chronology, but since neither of them are banded, we have no way to verify that. We have had the same female on site since we began watching them in 2016.
The nest we are watching now is the third nest built on this territory since 2009. The first nest (DNN0) was built in a pine tree. The branches collapsed after the second nesting season and the eagles moved to a dead elm tree. They nested there for just one year before moving to their current location in late 2013. 2018 will mark their fifth season in this nest.
- 2009: A pair of eagles establishes the Decorah North territory, building a nest in a white pine tree.
- 2011: The branches holding the nest collapse. The eagles build a new nest in a dead elm tree.
- 2013: The tree falls. The eagles begin a new nest in a white oak tree.
- 2015: Cameras are added to the North nest in very early fall.
The North nest is about 56 feet off the ground. It is nine feet long at its longest point, seven feet wide at its widest point, is about 5.5 feet high, and has a perimeter of roughly 25 feet.
Common name: Bald Eagle
Scientific name: Haliaeetus leucocephalus
Length: 2.3–3.1 feet | 71–96 cm
Wingspan: 5.9 – 7.5 feet | 1.7-2.2 meters
Weight: 6.5 – 13.8 pounds | 3–6.3 kilograms
Lifespan: Up to 40 years in the wild
Bald Eagle Vocalization
Decorah North Eagles 2018 Nesting Record
Egg #1: 2/25/18 @ 11:04 PM CT
The first egg failed in the early morning hours of March 16th. We are waiting to see if Mrs. North will recycle.
Egg #1: 4/12/18 @ 3:20 PM CDT
Egg #2: 4/15/18 @1:16 PM CDT
Eaglets and Outcomes
|Year||Nest|| Eaglets||Known Outcomes|
|2017||DN3||3 – DN4, DN5, DN6||3 eggs hatched. DN6 died of hypothermia|
shortly after hatch. DN4 and DN5 survived
|2016||DN3||3 – DN1, DN2, DN3||3 eggs hatched. DN3 died of cold and|
malnourishment on May 11. Sibling
aggression was a significant factor. DN2
was killed by contaminated prey on
May 25th. DN1 survived to fledge.
We often get questions about where the eaglets go after they disperse. We have never tracked eaglets from this nest, but we have tracked eaglets from the Decorah nest. For more information, visit our eagle maps.