Nickname
042-A-011 (North Arlington nest)
Coordinates
(40.7646, -74.1157)
Substrate
Elec. Transmission Tower
Description
Nest on a Transmission Tower overlooking Saw mill flats;
First reported by Chris Takacs
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 | |
|---|---|---|---|---|
| aAdult Arrival | 4/3/22 | 4/18/21 | 4/12/20 | |
| aOccupied | Yes | Yes | Yes | Yes |
| aActive | ||||
| bEgg Laying | 4/20/22 | 4/25/21 | 4/28/18 | 5/30/19 |
| bIncubation Initiation | 4/29/20 | |||
| cClutch Hatching | 6/3/20 | 6/30/19 | ||
| dNestlings | 3 | 2 | 1 | |
| eFledglings | 3 | 2 | 1 | |
| eFirst Chick Fledging | 9/1/19 | |||
| fChicks Last Observed | 8/10/21 | |||
| xNest Failure | 6/30/20 | |||
| xReason For Nest Failure | unknown reason |
Select Seasons
Show reports, diaries, and photos from:Current 2022 2021 2020 2019
Activity reports
2019 Nest Activity Report by jmac
| Adult arrival | Nestlings | 1 | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | 1 |
| Nest Active | First chick fledging | 09/01/2019 | |
| Egg laying | 05/30/2019 | Chicks last observed | |
| Incubation initiation | Nest failure | ||
| Clutch hatching | 06/30/2019 | Reason for nest failure |
2020 Nest Activity Report by jmac
| Adult arrival | 04/12/2020 | Nestlings | |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | |
| Nest Active | First chick fledging | ||
| Egg laying | 04/28/2018 | Chicks last observed | |
| Incubation initiation | 04/29/2020 | Nest failure | 06/30/2020 |
| Clutch hatching | 06/03/2020 | Reason for nest failure | unknown reason |
2021 Nest Activity Report by jmac
| Adult arrival | 04/18/2021 | Nestlings | 2 |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | 2 |
| Nest Active | First chick fledging | ||
| Egg laying | 04/25/2021 | Chicks last observed | 08/10/2021 |
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
2022 Nest Activity Report by jmac
| Adult arrival | 04/03/2022 | Nestlings | 3 |
|---|---|---|---|
| Nest Occupied | Yes | Fledglings | 3 |
| Nest Active | First chick fledging | ||
| Egg laying | 04/20/2022 | Chicks last observed | |
| Incubation initiation | Nest failure | ||
| Clutch hatching | Reason for nest failure |
Photos of this nest
Nesting Diaries
08/21/2022 by jmac
no Ospreys on the nest but several on the towers nearby. A pair making a nest a few towers to the north
08/06/2021 by jmac
checked on the nest today and there are two large chicks in the nest almost ready to fledge
04/04/2021 by jmac
Three Ospreys flying around the nest but I didn't observe any actually landing on it
07/08/2020 by jmac
still don't see any activity at this nest. I'll give it one more try before I give up on it.
06/30/2020 by jmac
No sign of any chicks today. The pair was on the transmission tower to the north and didn't seem upset even when I went directly under the nest. In fact they just flew away. Not a good sign.
05/04/2020 by jmac
despite all the wind the last month, this nest persists and has an incubating female. Today is a very windy day but so far so good
04/16/2020 by jmac
The start of a new nest right where the old one was. High winds (50/60mph) probably knocked some down
03/30/2020 by jmac
The nest is no longer there. I was told that the electric company removed the nest over winter
09/01/2019 by jmac
When I got there the nest was empty. Soon a single Osprey appeared and I could see it was a fledgling. It landed at the nest long enough for me to take a few pictures and confirm it was a fledgling and then left
08/17/2019 by jmac
This late chick is getting larger. Both parents present today while the chick eats
07/28/2019 by jmac
Still can only see one chick. this is probably a young pair who are not very attentive. Today the chick was alone in the nest unprotected. While I watched the male brought a fish to the nest and left it. The female was flying around, but didn't come to the nest to feed the chick, which is still small. Not a good sign
07/07/2019 by jmac
things look good; the male brought a fish and the female was feeding. Hard to tell how many chicks at this point
06/30/2019 by jmac
A newly hatched offspring was visible for the first time today. Both parents in the nest with it.
06/23/2019 by jmac
female sitting on the nest a little higher than in the past. She may have a newly hatched chick
06/16/2019 by jmac
It appears that male was on the side of the nest and the female is still incubating. this is a late nest for sure.
05/28/2019 by jmac
Nest reported by Chris Takacs. The nest is occupied and the pair is eaisly upset. Will investigate soon