Nickname
042-B-001
Coordinates
(40.8105, -74.0396)
Substrate
Radio Transmission Tower
Description
Carlstadt. This nest is the first nest in Bergen County in decades. It produced at least two young in 2011.
No young in 2013. Two Ospreys are on nest now 7/8/14, but so far up radio tower that it is hard to see.
Followers
None
Monitoring groups
What to look for
a
Adult Arrival
Look for 2 adults on the nest. The adult pair will show pair bonding behaviors such as vocalizations, aerial sky dances, and the male feeding the female fish. You may see the pair copulating, which typically begins 14 days before laying eggs.b
Incubation Initiation
Females will lay 1 - 4 eggs at a rate of one egg every 1 - 2 days. After laying, incubation starts. Look for adults taking turns sitting low in the nest incubating eggs. The incubation period can last 35 - 43 days.c
Clutch Hatching
Chicks hatch ~39 days after incubation begins. Look for adults bringing food to the nest and making "head bows" into the center. Chicks typically can't be seen until they are 2 - 3 weeks old, so feeding behavior is the only way to know chicks are there.d
Nestling Count
Around 4 weeks after hatching, look for the heads of chicks to show over the rim of the nest, particularly when adults bring food to the nest. Other times they lie flat and are harder to see. Count the number of chicks in the nest before they learn to flye
Fledgling Count
Chicks begin flying around 7 - 8 weeks old, and are still fed by the adults. Count the number of chicks who have successfully fledged the nest and are observed flying.f
Chick Last Observed
4 - 10 weeks after fledging, chicks begin leaving the nest area to migrate south, once they have learned to fly and feed themselves. Record the date that the last chick left the nest.x
Nest Failure
Look for signs of nest failure like adult abandonment, adults no longer incubating eggs or feeding young.Review All Observations
| 2022 - jmac | 2021 - jmac | 2020 - jmac | 2019 - jmac | 2017 - jmac | 2016 - jmac | 2015 - jmac | 2014 - NJMC Jim | 2012 - NJMC Jim | |
|---|---|---|---|---|---|---|---|---|---|
| aAdult Arrival | 4/22/22 | 4/18/21 | 4/1/20 | 4/30/16 | 4/5/12 | ||||
| aOccupied | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
| aActive | |||||||||
| bEgg Laying | 5/11/22 | 5/2/21 | |||||||
| bIncubation Initiation | 5/12/22 | 4/22/17 | |||||||
| cClutch Hatching | 6/2/19 | ||||||||
| dNestlings | 2 | ||||||||
| eFledglings | 1 | ||||||||
| eFirst Chick Fledging | |||||||||
| fChicks Last Observed | |||||||||
| xNest Failure | 7/6/21 | 6/24/20 | |||||||
| xReason For Nest Failure | unknown reason | unknown reason |
Select Seasons
Show reports, diaries, and photos from:Current 2022 2021 2020 2019 2018 2017 2016 2015 2014 2012
Activity reports
2012 Nest Activity Report by NJMC Jim
| Adult arrival | 04/05/2012 | Nestlings | 2 |
|---|---|---|---|
| Nest Occupied | No | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
2014 Nest Activity Report by NJMC Jim
| Adult arrival | Nestlings | ||
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
2015 Nest Activity Report by jmac
| Adult arrival | Nestlings | ||
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
2016 Nest Activity Report by jmac
| Adult arrival | 04/30/2016 | Nestlings | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
2017 Nest Activity Report by jmac
| Adult arrival | Nestlings | ||
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | 04/22/2017 | Nest failure | |
| Clutch hatching | Reason for nest failure |
2019 Nest Activity Report by jmac
| Adult arrival | Nestlings | ||
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | ||
| Clutch hatching | 06/02/2019 | Reason for nest failure |
2020 Nest Activity Report by jmac
| Adult arrival | 04/01/2020 | Nestlings | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | 06/24/2020 | |
| Clutch hatching | Reason for nest failure | unknown reason |
2021 Nest Activity Report by jmac
| Adult arrival | 04/18/2021 | Nestlings | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | 05/02/2021 | Chicks last observed | |
| Incubation initiation | Nest failure | 07/06/2021 | |
| Clutch hatching | Reason for nest failure | unknown reason |
2022 Nest Activity Report by jmac
| Adult arrival | 04/22/2022 | Nestlings | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | 1 |
| Nest Active | First chick fledging | ||
| Egg laying | 05/11/2022 | Chicks last observed | |
| Incubation initiation | 05/12/2022 | Nest failure | |
| Clutch hatching | Reason for nest failure |
Photos of this nest
Nesting Diaries
08/04/2022 by jmac
Good views of the nest by boat. No fledglings on nest but Osprey working on the nest.
07/27/2022 by jmac
was out by boat today and could see what looked like a chick on the far side of the structure in the nest
07/04/2022 by jmac
one Osprey on the tower over the nest. Nest not visible from the east side looking west
06/19/2022 by jmac
saw a bird go to the nest with a branch and disappear behind the structure. This nest should be observed by boat to see what's going on.
05/15/2022 by jmac
it's hard to see but I did observe a male bring a fish to the female that got off the nest to accept it, so it has to be active.
07/06/2021 by jmac
visiting the nests by boat with the NJSEA environmentalist today. Good views of the nest which appears to be empty. Ospreys on the tower but not near the nest
06/20/2021 by jmac
There was an Osprey on the tower, but I couldn't see any movement in the nest. This nest is a far distance for viewing and blocked by some metal so it's hard to know for sure what's going on.
05/09/2021 by jmac
I observed Osprey birnging sticks to the nest two weeks ago. Today when the male came to the nest the female got up from the nest so I think it is safe to assume that she is incubating.
07/08/2020 by jmac
no activity for the third visit in a row. I would say this nest failed. There is an eagle nest a few hundred yards to the north on the river. Could be the problem
06/08/2020 by jmac
Osprey bringing fish to the nest and also bringing sticks as I observed for quite a while. I would guess there are young but just can't see much.
05/13/2020 by jmac
The nest is hidden behind some steel beams so it's impossible to see whats going on, but an Osprey perched on the structure above the nest so maybe and incubating female
06/14/2019 by jmac
Watched the nest for more than a half hour and didn't see any movement. This is a big, deep nest and probably a half mile from my viewing point so I'm not ready to call it yet. View with a 60x scope.
06/02/2019 by jmac
Osprey appears to be shading chick/chicks on the nest. A second bird brought a fish to the nest while I watched.
04/29/2019 by jmac
Reports that Ospreys were seen bringing sticks. There was a male present when I viewed the nest so it's seems active. Will monitor
04/29/2018 by jmac
I haven't checked this nest yet, but was told by a man who has direct access that there is no activity at this time. Hope to get access soon myself
07/06/2017 by jmac
checked the nest with the scope today. there was a pair of adult birds present, even one feeding in the nest, but I couldn't see any chicks. This is a big nest and quite a distance from where I can observe, but after an hour I would think I would have seen what would be a 6 or 7 week old chick if one were there. I will check again next week.
04/22/2017 by jmac
04/22/2017 by jmac (edit) ( this is a duplicate of nest 3411)
I could see the nest from across the river at Mill Creek Point Park. It had deteriorated but was rebuilt and there was an Osprey perched on the tower. I couldn't see inside the nest, even with the scope, but it could be occupied. ( after inspecting my photos, I could see in two the raised back of an Osprey, so it is occupied and incubating)
06/05/2016 by jmac
two Osprey perched on the tower, but not near the nest. I don't think this nest is active
05/29/2016 by jmac
No sign of any Ospreys near this nest after 1/2 hour of observation. Possible there is a bird incubating that is not visible
08/29/2015 by jmac
On a pontoon boat trip sponsored by the Hackensack Sports Authority and Bergen Audubon and we went past this nest. There were two Ospreys observered at the nest, but too far to determine if adults or fledglings.
04/22/2014 by NJMC Jim
Have seen Ospreys on or near nest twice now. Lots of Peregrine activity as well. Nest failed last year after being washed away by Hurricane Sandy.