Coordinates
(39.8008, -74.0943)
Substrate
Osprey Nest Platform
Description
123-A-023. Installed in 1995. Camera installed in 2012 by FIBSP.
What to look for
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.
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.
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.
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 fly
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.
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.
Nest Failure
Look for signs of nest failure like adult abandonment, adults no longer incubating eggs or feeding young.
Previous Next Review All Observations
| 2018 - Ben Wurst | 2015 - Ben Wurst | 2015 - Bonnie | 2014 - Ben Wurst | 2013 - Ben Wurst | 2013 - Ben Wurst | 2013 - Bonnie | 2012 - Ben Wurst |
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aAdult Arrival | | | 3/26/15 | 3/21/14 | | 3/24/13 | 3/24/13 | 3/22/12 |
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aOccupied | Yes | Yes | Yes | Yes | No | Yes | No | No |
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aActive | | | | | | | | |
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bEgg Laying | | 4/27/15 | 4/27/15 | | | 4/17/13 | 4/17/13 | 4/17/12 |
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bIncubation Initiation | | | | | | 4/18/13 | | 4/17/12 |
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cClutch Hatching | | | | | | 5/27/13 | 5/27/13 | 5/27/12 |
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dNestlings | | | | | | 4 | 2 | 1 |
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eFledglings | | | | | 4 | 4 | | |
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eFirst Chick Fledging | | | | | | | | |
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fChicks Last Observed | | | | | | | | |
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xNest Failure | | | | 5/30/14 | | | | |
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xReason For Nest Failure | | | | eggs or young killed by predator | | | | |
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Select Seasons
Show reports, diaries, and photos from:Current 2018 2016 2015 2014 2013 2012
Activity reports
2012 Nest Activity Report by
Ben WurstAdult arrival | 03/22/2012 | Nestlings | 1 |
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Nest Occupied | No | Fledglings | |
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Nest Active | | First chick fledging | |
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Egg laying | 04/17/2012 | Chicks last observed | |
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Incubation initiation | 04/17/2012 | Nest failure | |
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Clutch hatching | 05/27/2012 | Reason for nest failure | |
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2013 Nest Activity Report by
BonnieAdult arrival | 03/24/2013 | Nestlings | 2 |
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Nest Occupied | No | Fledglings | |
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Nest Active | | First chick fledging | |
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Egg laying | 04/17/2013 | Chicks last observed | |
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Incubation initiation | | Nest failure | |
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Clutch hatching | 05/27/2013 | Reason for nest failure | |
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2013 Nest Activity Report by
Ben WurstAdult arrival | 03/24/2013 | Nestlings | 4 |
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Nest Occupied | Yes | Fledglings | 4 |
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Nest Active | | First chick fledging | |
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Egg laying | 04/17/2013 | Chicks last observed | |
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Incubation initiation | 04/18/2013 | Nest failure | |
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Clutch hatching | 05/27/2013 | Reason for nest failure | |
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2013 Nest Activity Report by
Ben WurstAdult arrival | | Nestlings | |
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Nest Occupied | No | Fledglings | 4 |
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Nest Active | | First chick fledging | |
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Egg laying | | Chicks last observed | |
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Incubation initiation | | Nest failure | |
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Clutch hatching | | Reason for nest failure | |
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2014 Nest Activity Report by
Ben WurstAdult arrival | 03/21/2014 | Nestlings | |
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Nest Occupied | Yes | Fledglings | |
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Nest Active | | First chick fledging | |
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Egg laying | | Chicks last observed | |
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Incubation initiation | | Nest failure | 05/30/2014 |
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Clutch hatching | | Reason for nest failure | eggs or young killed by predator |
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2015 Nest Activity Report by
Ben WurstAdult arrival | | Nestlings | |
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Nest Occupied | Yes | Fledglings | |
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Nest Active | | First chick fledging | |
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Egg laying | 04/27/2015 | Chicks last observed | |
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Incubation initiation | | Nest failure | |
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Clutch hatching | | Reason for nest failure | |
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2015 Nest Activity Report by
BonnieAdult arrival | 03/26/2015 | Nestlings | |
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Nest Occupied | Yes | Fledglings | |
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Nest Active | | First chick fledging | |
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Egg laying | 04/27/2015 | Chicks last observed | |
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Incubation initiation | | Nest failure | |
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Clutch hatching | | Reason for nest failure | |
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2018 Nest Activity Report by
Ben WurstAdult arrival | | Nestlings | |
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Nest Occupied | Yes | Fledglings | |
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Nest Active | | First chick fledging | |
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Egg laying | | Chicks last observed | |
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Incubation initiation | | Nest failure | |
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Clutch hatching | | Reason for nest failure | |
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Nesting Diaries
Male was banded on June 26. 2009 by myself at nest #323 on 6/26/09. I was finally able to confirm that ID today.
Stopped by today around 4:30 pm. First time I saw both in nest. One had just returned with rather large bunker, the other took off shortly after I took this photo,
Male returned on 3/21. Observed with prey at 9am today.
First egg hatched Memorial Day, May 27 around 6:45 p.m. Second hatching May 28 around 10:45 p.m. Today, both chicks being fed by mom. Two eggs remain in the nest. Will we have more?
male and female in and out of nest
One 3 week old nestling was banded on 6/18/2012. USGS band #0928-14037. A feather sample was taken for stable isotope analysis and two addled eggs were collected.
Third egg has been laid 04/23/2012