Nickname
042-B-003
Coordinates
(40.8053, -74.0543)
Substrate
Dead Tree
Description
In the middle of a dead tree
The pair has moved the nest to a new location across the river on an abandoned Red tail Hawk nest.
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
| 2017 - Ben Wurst | 2016 - jmac | 2014 - Kristen3159 | |
|---|---|---|---|
| aAdult Arrival | 4/17/16 | ||
| aOccupied | No | Yes | No |
| aActive | |||
| bEgg Laying | 4/25/16 | ||
| bIncubation Initiation | 4/27/16 | ||
| cClutch Hatching | |||
| dNestlings | |||
| eFledglings | |||
| eFirst Chick Fledging | |||
| fChicks Last Observed | |||
| xNest Failure | 6/2/16 | ||
| xReason For Nest Failure | nest destroyed during storm |
Select Seasons
Show reports, diaries, and photos from:Current 2019 2018 2017 2016 2015 2014
Activity reports
2014 Nest Activity Report by Kristen3159
| Adult arrival | Nestlings | ||
|---|---|---|---|
| Nest Occupied | No | 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 | 04/17/2016 | Nestlings | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | 04/25/2016 | Chicks last observed | |
| Incubation initiation | 04/27/2016 | Nest failure | 06/02/2016 |
| Clutch hatching | Reason for nest failure | nest destroyed during storm |
2017 Nest Activity Report by Ben Wurst
| Adult arrival | Nestlings | ||
|---|---|---|---|
| Nest Occupied | No | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | Chicks last observed | ||
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
Photos of this nest
Nesting Diaries
07/07/2019 by jmac
a pair of Ospreys on this tree again with a "practice" nest of sticks. Defending the tree from other Ospreys attempting to land on the tree. This could be the same pair that has been nesting and attempting to nest at River Barge Park for the last several years.
04/08/2017 by jmac
a new nest about a half of a mile on the river to the south. Possibly the same pair. New nest #6721
06/19/2016 by jmac
Two Osprey on the tree that held the nest last year. This years nest is pretty much gone
06/05/2016 by jmac
So the nest has clearly collapsed. The female was on an adjacent tree, the male was no where to be seen. Too bad, they had been incubating well. Picture attached
06/02/2016 by jmac
Once again there were several birds on the tree. The owner of the nest was aggressive about chasing the others to the perimeters but seemed to have given up chasing them away. I couldn't see the female incubating today, but I hope she was in the nest.
05/27/2016 by jmac
bird was incubating today, but oddly there were three adults sitting on the nest tree. the pair didn't chase the other two.
04/30/2016 by jmac
Viewed the nest from the opposite side in a park on the other side of the river and could see an incubating Osprey in the nest and another perched in the tree near by
04/25/2016 by jmac
There was a bird in the nest when I arrived but not necessarily in an incubation position. The second bird came to the nest and joined the first, but this looks like a permanent nest
04/20/2016 by jmac
The nest on the old RTH nest has gotten much bigger and both birds were perched at it today. I think this is going to be the permanent site
04/16/2016 by jmac
This pair had built a new nest on an unused crane at a construction site a half mile away. It had to be disassembled. The Sports Authority folks and some volunteers constructed a nesting platform but so far no nest building there. Apparently they are trying the dead tree again and another pair is bringing sticks to an abandoned Redtail Hawk nest near by.
04/07/2016 by jmac
Two birds on the dead tree this morning, but no nest yet. Maybe this year they'll succeed.
06/20/2015 by jmac
Stopped by today. There was an Osprey on the nest tree, but no nest. Hopefully next year
05/30/2015 by jmac
Stopped by this morning and the pair was in the tree, but no nest. I found out that the platform was only recently put there hoping the pair would make a nest there. But so far they don't seem interested.
05/08/2015 by jmac
Once again the nest has fallen down. This really isn't the best place they could try to build a nest. There was one Osprey on the tree this morning, but the entire nest is gone.
05/03/2015 by jmac
The nest is starting to take shape. Was there this morning and the female was bringing sticks. I didn't see the male this morning.
04/29/2015 by jmac
Not much progress on the new nest since four days ago. The pair was sitting next to their lame nest (see pic). I'm not optimistic at this point
04/26/2015 by jmac
Apparently there was a nest in this tree last year, but it is gone now. However the pair was busy rebuilding it this morning. Ironically there is an Osprey platform a couple of hundred yards away that does have some sticks on it, but looks inactive.